Yamaha P125AB P-125a 88-Key Digital Piano User Manual

DIGITAL PIANO

Owner’s Manual

Appendix IntroductionReference

Before using the instrument, be sure to read “PRECAUTIONS” on pages 5 – 6.

P-125a Owner’s Manual

The model number, serial number, power requirements, etc., may be found on or near the name plate, which is at the

bottom of the unit. You should note this serial number in the space provided below and retain this manual as a perma-

nent record of your purchase to aid identification in the event of theft.

Model No.

Serial No.

(1003-M06 plate bottom en 01)

Information for users on collection and disposal of old equipment:

This symbol on the products, packaging, and/or accompanying documents means that used electrical and electronic products

should not be mixed with general household waste.

For proper treatment, recovery and recycling of old products, please take them to applicable collection points, in accordance with

your national legislation.

By disposing of these products correctly, you will help to save valuable resources and prevent any potential negative effects on

human health and the environment which could otherwise arise from inappropriate waste handling.

For more information about collection and recycling of old products, please contact your local municipality, your waste disposal

service or the point of sale where you purchased the items.

For business users in the European Union:

If you wish to discard electrical and electronic equipment, please contact your dealer or supplier for further information.

Information on Disposal in other Countries outside the European Union:

This symbol is only valid in the European Union. If you wish to discard these items, please contact your local authorities or dealer

and ask for the correct method of disposal.

(58-M02 WEEE en 01)

P-125a Owner’s Manual

PRECAUTIONS

PLEASE READ CAREFULLY BEFORE PROCEEDING

Especially in the case of children, a guardian should provide guidance on how to

properly use and handle the product before actual use.

Please keep this manual in a safe and handy place for future reference.

WARNING

Always follow the basic precautions listed below to avoid the possibility of serious injury or even death from electrical

shock, short-circuiting, damages, fire or other hazards. These precautions include, but are not limited to, the

following:

• Do not place the power cord near heat sources such as heaters or radiators. Also,

do not excessively bend or otherwise damage the cord, or place heavy objects on

it.

• Do not touch the product or the power plug during an electrical storm.

• Use only the correct voltage specified for the product. The required voltage is

printed on the name plate of the product.

• Use the specified AC adaptor (page 25).

• Check the power plug periodically and remove any dirt or dust which may have

accumulated on it.

• Insert the power plug firmly all the way into the AC outlet. Using the product

when it is not plugged in sufficiently can cause dust to accumulate on the plug,

possibly resulting in fire or skin burns.

• When setting up the product, make sure that the AC outlet you are using is easily

accessible. If some trouble or malfunction occurs, immediately turn off the power

switch and disconnect the plug from the outlet. Even when the power switch is

turned off, as long as the power cord is not unplugged from the wall AC outlet,

the product will not be disconnected from the power source.

• Do not connect the product to an electrical outlet using a multi-plug outlet

extender. Doing so can result in lower sound quality, or possibly cause

overheating in the outlet.

• When disconnecting the power plug, always hold the plug itself and not the cord.

Pulling by the cord can damage it and cause electric shocks or a fire.

• If not using the product for long periods of time, be sure to pull the power plug

from the AC outlet.

• This product contains no user-serviceable parts. Do not attempt to disassemble

the internal parts or modify them in any way.

• Do not expose the product to rain, use it near water or in damp or wet conditions,

or place on it any containers (such as vases, bottles or glasses) containing

liquids which might spill into any openings or places where water may drop. A

liquid such as water getting into the product may cause a fire, electric shocks, or

malfunctions.

• Use the AC adaptor indoors only. Do not use in any wet environments.

• Never insert or remove a power plug with wet hands.

• Do not place any burning items or open flames near the product, since they may

cause a fire.

• If any of the following problems occur, immediately turn off the power switch and

disconnect the power plug from the outlet.

Finally have the device inspected by Yamaha service personnel.

- The power cord or plug becomes frayed or damaged.

- Unusual smells or smoke are emitted.

- Some object, or water has been dropped into the product.

- There is a sudden loss of sound during use of the product.

- Cracks or other visible damage appear on the product.

Power supply

Do not disassemble

Water warning

Fire warning

If you notice any abnormality

DMI-10 1/2

P-125a Owner’s Manual

CAUTION

Always follow the basic precautions listed below to avoid the possibility of physical injury to you or others, or damage

to the product or other property. These precautions include, but are not limited to, the following:

• Do not place the product in an unstable position or a location with excessive

vibration, where it might accidentally fall over and cause injury.

• Before moving the product, remove all connected cables, to prevent damage to

the cables or injury to anyone who might trip over them.

• Use only the stand specified for the product. When attaching it, use the provided

screws only. Failure to do so could cause damage to the internal components or

result in the product falling over.

• Before connecting the product to other electronic components, turn off the power

for all components. Before turning the power on or off for all components, set all

volume levels to minimum.

• Be sure to set the volumes of all components at their minimum levels and

gradually raise the volume controls while playing the product to set the desired

listening level.

• Do not insert foreign materials such as metal or paper into any openings or gaps

of the product. Failure to observe this may cause a fire, electric shocks, or

malfunctions.

• Do not rest your weight on, or place heavy objects on the product, and do not use

excessive force on the buttons, switches or connectors.

• Do not use the product or headphones for a long period of time at a high or

uncomfortable volume level, since this can cause permanent hearing loss. If you

experience any hearing loss or ringing in the ears, consult a physician.

• Remove the power plug from the AC outlet before cleaning the unit. Failure to

observe this may cause electric shocks.

Always turn the power off when the product is not in use.

Even when the [ ] (Standby/On) switch is in standby status (power lamp is off), electricity is still flowing to the product at the minimum level.

When you are not using the product for a long time, make sure you unplug the power cord from the wall AC outlet.

NOTICE

To avoid the possibility of malfunction/ damage to the product,

damage to data, or damage to other property, follow the notices

below.

 Handling

• Do not use the instrument in the vicinity of a TV, radio, stereo equipment, mobile

phone, or other electric devices. Otherwise, the instrument, TV, or radio may

generate noise.

• When you use the instrument along with an app on your smart device, such as a

smartphone or tablet, we recommend that you enable “Airplane Mode” on the

device to avoid noise caused by communication.

• Do not expose the instrument to excessive dust or vibrations, or extreme cold or

heat (such as in direct sunlight, near a heater, or in a car during the day) to

prevent the possibility of disfiguration, damage to the internal components or

unstable operation. (Verified operating temperature range: 5° – 40°C, or 41° –

104°F.)

• Do not place vinyl, plastic or rubber objects on the instrument, since this might

discolor the instrument.

 Maintenance

• When cleaning the instrument, use a soft and dry/slightly damp cloth. Do not use

paint thinners, solvents, alcohol, cleaning fluids, or chemical-impregnated

wiping cloths.

 Saving data

• Some of the data of this instrument (page 24) are retained when the power is

turned off. However, the saved data may be lost due to some failure, an operation

mistake, etc. Save your important data onto an external device such as a computer

(page 24).

Information

 About copyrights

• The copyright of the “content”*

installed in this product belongs to Yamaha

Corporation or its copyright holder. Except as permitted by copyright laws and

other relevant laws, such as copying for personal use, it is prohibited to

“reproduce or divert”*

without the permission of the copyright holder. When

using the content, consult with a copyright expert.

If you create music or perform with the contents through the original use of the

product, and then record and distribute them, the permission of Yamaha

Corporation is not required regardless of whether the distribution method is paid

or free of charge.

*1: The word “content” includes a computer program, audio data, Accompaniment Style data,

MIDI data, waveform data, voice recording data, music score, and score data, etc.

*2: The phrase “reproduce or divert” includes taking out the content itself in this product, or

recording and distributing it without changes in a similar manner.

 About functions/data bundled with the instrument

• Some of the preset Songs have been edited for length or arrangement, and may

not be exactly the same as the original.

 About this manual

• The illustrations as shown in this manual are for instructional purposes only.

• iPhone, iPad of Apple Inc., registered in the U.S. and other countries.

• The company names and product names in this manual are the trademarks or

registered trademarks of their respective companies.

 Tuning

• Unlike an acoustic piano, this instrument does not need to be tuned by an expert

(although the pitch can be user-adjusted to match other instruments). This is

because the pitch of digital instruments is always maintained perfectly.

 About disposal

• When disposing of this product, please contact the appropriate local authorities.

Location

Connections

Handling

Yamaha cannot be held responsible for damage caused by improper use or modifications to the product, or data that is lost or destroyed.

DMI-10 2/2

P-125a Owner’s Manual

Appendix IntroductionReference

Contents

PRECAUTIONS ...................................................... 5

With this instrument, you can:................................. 7

About the Manuals .................................................. 8

About the Key Operations....................................... 8

Included Accessories .............................................. 8

Introduction

Panel Controls and Terminals 9

Setting Up 10

Power Requirements ............................................ 10

Turning the Power On/Standby............................. 10

Auto Power Off Function....................................... 10

Adjusting the Master Volume ................................ 11

Operation Confirmation Sounds............................ 11

Using Headphones ............................................... 11

Using a Pedal (Sustain) ........................................ 12

Using the Pedal Unit (sold separately).................. 12

Reference

Selecting & Playing Voices 13

Selecting a Voice .................................................. 13

Using Table EQ..................................................... 13

Strengthening the Overall Sound (Sound Boost).. 13

Layering Two Voices (Dual).................................. 14

Splitting the Keyboard (Split) ................................ 15

Playing Duo........................................................... 15

Using the Metronome 16

Voice Confirmation of Current Tempo Value (in English)

.. 16

Adjusting the Tempo ............................................. 16

Selecting a Beat (Time Signature) ........................ 16

Adjusting the Volume ............................................ 16

Setting Various Items for Performances 17

Tuning, Transpose ................................................ 17

Reverb, Touch Sensitivity ..................................... 17

Playing Back Songs 18

Listening to the Voice Demo Songs ......................18

Listening to the 50 Preset Songs or External Songs

...18

Using Quick Play ...................................................19

Song Playback and Practice of Each Part 19

Adding Accompaniment to Your Performance

(Rhythm) 20

Adjusting the Volume.............................................20

Adjusting the Tempo..............................................20

Recording Your Performance 21

Quick Recording .................................................... 21

Recording Independently to Two Parts .................21

Deleting the User Song ......................................... 22

Changing the Initial Settings of the Recorded Song

...22

Connecting Other Equipment 23

Connecting External Speakers ..............................23

Connecting a Smart Device...................................23

Connecting to a Computer.....................................24

Data Backup and Initializing 24

Appendix

Troubleshooting 25

Specifications 25

Voice List (Detailed) 26

Index 27

List 28

With this instrument, you can:

 Enjoy the feel of an authentic piano action with the Graded Hammer Standard (GHS) keyboard.

 Listen to the 50 Classics, or practice these preset songs by playing each part separately (pages 18

and 19).

 Feel like a pro with the Rhythm feature that automatically adds accompaniment when you play the

keyboard (page 20).

 Practice effectively by using the built-in recorder and metronome (pages 16 and 21).

 “Smart Pianist” (free download) lets you make various settings intuitively while viewing the screen

(page 23).

P-125a Owner’s Manual

Thank you for purchasing this Yamaha Digital Piano!

This instrument provides exceptionally high-quality sound and expressive control for your

playing enjoyment.

We recommend that you read this manual carefully so that you can fully take advantage of

the advanced and convenient functions of the instrument.

We also recommend that you keep this manual in a safe and handy place for future refer-

ence.

This instrument has the following documents and

instructional materials.

Included Documents

Owner’s Manual (this book)

Explains how to use the instrument.

Quick Operation Guide

Shows in chart form the functions

assigned to the buttons and the keyboard

for quick understanding.

Online Materials

• Smart Device Connection Manual

Explains how to connect the instrument to smart

devices, such as iPhone, iPad, etc.

• Computer-related Operations

Contains instructions about computer-related func-

tions.

• MIDI Reference

Contains MIDI-related information.

• MIDI Basics (only in English, French, German

and Spanish)

Contains basic explanations about what MIDI is and

can do.

To obtain these materials, access the Yamaha Down-

loads website, then enter the model name for search-

ing the desired files.

While holding down the button(s), press the appropri-

ate key to make various settings, such as turning the

function on or off, playing back the Songs and so on.

If you come across the illustrations like below in this

manual, press the same key while holding down the

same button(s) as illustrated.

About the Manuals

Yamaha Downloads

https://download.yamaha.com/

About the Key Operations

Above illustration indicates

q While simultaneously holding down the

[METRONOME] and [RHYTHM] buttons…

w Press one of the shaded keys briefly.

Finally, release all the buttons.

C0 C1 C2 C3 C4 C5 C6 C7

While holding down

A#5: On

A5: Off

Included Accessories

• Owner’s Manual x1

• Quick Operation Guide x1

•AC Adaptor*x1

• Online Member Product Registration x1

• Footswitch x1

* May not be included depending on your particular area. Please check

with your Yamaha dealer.

• Music Rest x1

Insert into

the slot

P-125a Owner’s Manual

Introduction

Panel Controls and Terminals

q [ ] (Standby/On) switch ......................page 10

For turning the power on or setting to standby.

w [MASTER VOLUME] slider....................page 11

For adjusting the volume of the entire sound.

e [DEMO/SONG] button ...........................page 18

For playing the Demo Songs and the Preset Songs.

r [METRONOME] button ..........................page 16

For starting or stopping the metronome.

t [RHYTHM] button ................................. page 20

For starting or stopping the rhythm.

y [-][+], [L][R] buttons ........pages 15 – 16, 18, 22

For selecting a Song during playback, adjusting the

tempo, and selecting the Song part for recording

and playback.

u [] (Record) button .............................. page 21

For recording your keyboard performance.

i [/] (Play/Stop) button ...................... page 21

For playing back or stopping the recorded perfor-

mance.

o Voice buttons.........................................page 13

For selecting a Voice or two Voices played simulta-

neously, such as Piano and Organ.

!0 [USB TO HOST] terminal ......................page 24

For connecting to a computer or a smart device

such as iPhone or iPad.

!1 [SUSTAIN] jack......................................page 12

For connecting the included footswitch, an

optional footswitch and foot pedal.

!2 [PEDAL UNIT] jack................................page 12

For connecting an optional pedal unit.

!3 AUX OUT [R][L/L+R] jacks ...................page 23

For connecting external audio equipment.

!4 DC IN jack ..............................................page 10

For connecting the power adaptor.

!5 [PHONES] jacks ....................................page 11

For connecting a set of standard stereo head-

phones.

!3 !4!2!1!0

qwerty

C0 C1 C2 C3 C4 C5 C6 C7

A-1

About the Built-in Speakers

Since sound from the built-in speakers also comes from the bottom

of the instrument, we recommend that you use an optional keyboard

stand for better sound. When playing the instrument placed on a

desk or table, turn on the Table EQ function (page 13.)

Shows the jacks and terminals as seen when viewed from the rear of the instrument.

Introduction

P-125a Owner’s Manual

Introduction

Setting Up

Connect the AC adaptor in the order shown in the

illustration.

q Turn down the [MASTER VOLUME] to “MIN”.

w Press the [ ] (Standby/On) switch to turn the

power on.

The [ ] (Standby/On) switch lights up. Adjust

the volume as desired while playing the keyboard.

e Press and hold the [ ] (Standby/On) switch for

about a second to turn the power to standby mode.

To prevent unnecessary power consumption, this

function automatically turns the power off if the

instrument is not operated for 30 minutes.

To disable/enable the Auto Power Off function

Default setting: Enable

When the power is off, turn the power on while hold-

ing down the lowest key disables Auto Power Off. The

[

] lamp flashes three times, indicating that the Auto

Power Off function has been disabled.

Power Requirements

• Use the specified AC adaptor (page 25) only. Using the

wrong AC adaptor can result in damage to the instrument

or overheating.

• When using the AC adaptor with a removable plug, make

sure to keep the plug attached to the AC adaptor. Using the

plug alone can cause electric shock or fire.

• Never touch the metallic section when attaching the plug.

To avoid electric shock, short circuit or damage, also be

careful that there is no dust between the AC adaptor and

plug.

• When setting up the product, make sure that the AC outlet

you are using is easily accessible. If some trouble or mal-

function occurs, immediately turn the power off and dis-

connect the plug from the outlet.

• Follow the order shown above in reverse when disconnecting the AC adaptor.

AC adaptor

AC outlet

DC IN jack

(page 9)

WARNING

Plug

Slide the plug as

indicated.

* The shape of the plug differs depending on your area.

WARNING

NOTE

Turning the Power On/Standby

• Even when the power switch is turned off, electricity is still

flowing to the product at the minimum level. When you are

not using the product for a long time, make sure to unplug

the power cord from the wall AC outlet.

Auto Power Off Function

• If your digital piano is connected to other equipment such

as amplifiers, speakers, or a computer but you do not

intend to use it for 30 minutes, we recommend that you

turn off all devices as described in their owner’s manuals.

Doing so eliminates the risk of damage to the other equip-

ment. If you do not want the instrument to turn off auto-

matically when connected to other equipment, disable the

Auto Power Off function.

WARNING

Lowest

key

While holding

down

A#0: Enable

A0: Disable

NOTICE

Setting Up

P-125a Owner’s Manual

Introduction

To adjust the volume of the entire keyboard sound, use

the [MASTER VOLUME] while playing the key-

board.

Intelligent Acoustic Control (IAC)

With this function, the sound quality of this instru-

ment is automatically adjusted and controlled accord-

ing to the overall volume. Even when the volume is

low, you can hear both low sounds and high sounds

clearly. IAC Control is effective only from the sound

output of the instrument speakers.

IAC On/Off

Default setting: On

IAC Depth

Setting range: -3 – 0 – +3

Default setting: 0

When a setup is changed using a button and key com-

bination, an operation sound (“On,” “Off,” click,

tempo value input) is sounded. This confirmation

sound can be enabled (On) or disabled (Off) as

desired.

Default setting: On

Connect a pair of headphones to the [PHONES] jack.

Since this instrument is equipped with two

[PHONES] jacks, you can connect two pairs of head-

phones. If you are using only one pair, insert the plug

into either of these jacks.

If your headphones have a stereo mini plug, use a ste-

reo conversion plug to convert it to a standard stereo

phone plug.

Reproducing natural sound distance (Stereo-

phonic Optimizer)

Default setting: on

The Stereophonic Optimizer recreate for headphones

a natural distance between your ears and the instru-

ment, just as when playing an acoustic piano.

Stereophonic Optimizer On/Off

While holding down [PIANO], press the F3 key to

turn the function off or F#3 to turn on.

Adjusting the Master Volume

• Do not use the instrument for a long period of time at a

high or uncomfortable volume level, since this can cause

permanent hearing loss.

LouderSofter

CAUTION

C0 C1 C2

C4 C5 C6 C7

C#2: OnC2: Off

E2: Up by 1D2: Down by 1

While holding

down

D#2: 0

(reset to the default setting)

IAC Depth

IAC On/Off

Operation Confirmation Sounds

Using Headphones

• Do not use the headphones for a long period of time at a

high or uncomfortable volume level, since this can cause

permanent hearing loss.

Lowest key: Off

While holding

down

Second lowest key: On

Standard stereo

phone plug

CAUTION

Setting Up

P-125a Owner’s Manual

Introduction

You can produce a natural sustain as you play by

pressing the included footswitch plugged into the

[SUSTAIN] jack.

Also an optional FC3A foot pedal or FC4A or FC5

footswitch can be connected to this jack. The FC3A

lets you use the Half Pedal function.

Damper Resonance

When you select a Piano Voice, pressing the foot-

switch activates the Damper Resonance/ Sustain

sampling effect (when on) to accurately recreate

the resonance of an acoustic piano’s strings.

To turn the effect on and enable footswitch control,

simultaneously hold down [PIANO] and press the

C#3 key; to turn it off, simultaneously hold down

[PIANO] and press C3.

Default setting: on

The [PEDAL UNIT] jack is for connecting the LP-1

pedal unit (sold separately). When connecting the

pedal unit, make sure to also assemble the unit on the

L-125 keyboard stand (sold separately).

Damper (Right) Pedal

Pressing this pedal will sustain notes longer. Releas-

ing this pedal immediately stops (damps) any sus-

tained notes. The damper pedal is compatible with the

Damper Resonance (see column at left). A “half-

pedal” function of this pedal creates partial sustain

effects, depending on how far down you press the

pedal.

Sostenuto (Center) Pedal

If you play a note or chord on the keyboard and press

the sostenuto pedal while the note(s) are held, those

notes will sustain as long as you hold the pedal (as if

the damper pedal had been pressed) but all subse-

quently played notes will not be sustained. This makes

it possible to sustain a chord, for example, while other

notes are played “staccato.”

Soft (Left) Pedal

The soft pedal reduces the volume and slightly

changes the timbre of notes played while the pedal is

pressed. The soft pedal will not affect notes that are

already playing when it is pressed.

Using a Pedal (Sustain)

• Damper Resonance cannot be used in Duo (page 15).

Half-pedal function (for FC3A and Pedal Unit)

This function allows you to vary the sustain length

depending on how far the pedal is pressed. The far-

ther down you press the pedal, the more the sound

sustains. For example, if you press the damper pedal

and all notes you are playing sound a bit murky and

loud with too much sustain, you can release the pedal

half way or higher to decrease the sustain (murki-

ness).

• Do not press the footswich when turning the power on. Doing this changes the

recognized polarity of the footswitch, resulting in reversed footswitch operation.

• Make sure that power is OFF when connecting or disconnecting the footswitch

or pedal.

Using the Pedal Unit (sold separately)

NOTE

• Make sure that power is off when connecting or disconnecting the pedal unit.

• When the “Jazz Organ” is selected, pressing and releasing this pedal switches

between “fast” and “slow” of the Rotary Speaker speed. When the Vibraphone is

selected, this pedal switches Vibrato on and off.

LP-1

(Sold separately)

L-125

(Sold separately)

NOTE

If you press and hold the sostenuto pedal here,

only the notes held at this timing will be sustained.

NOTE

P-125a Owner’s Manual

Reference

Selecting & Playing Voices

The instrument has a wide variety of Voices, or instrument sounds, for your enjoyment, including Piano and

Organ.

The Voices of the instrument are conveniently divided into

specific groups and each of them are assigned to the Voice

buttons.

Press a Voice button (page 9).

A Voice is called up from the selected group. Try

playing the keyboard and listening to the sound.

Pressing the same Voice button selects the Voices

in the group in order. For details, refer to the Voice

List below. When the first Voice in the group is

selected, a Variation lamp is off. When a Variation

Voice 1 – 3 is selected, the corresponding varia-

tion lamp lights up.

Voice List

Refer to the “Voice List (Detailed)” on page 26 for

more information on the characteristics of each

preset Voice.

When this is set to on, speaker sound will be opti-

mized for playing the keyboard placed on the table or

desk. This function is effective only from the sound

output of the instrument speakers. Turn off when you

play the keyboard installed on the stand.

Default setting: off

This function is particularly useful when you want not

only notes played very loud, but also those played

softly, to be clearly audible.

Default setting: off

* Refer to the printing above the keyboard (SOUND BOOST

OFF/ON).

Selecting a Voice

• The last selected Voice in the selected group will be called up when the

Voice button is pressed. This will be reset to the first Voice when you

turn off the power.

• Pressing [+BASS] turn on the Split function (page 15).

Voice Button

(Group)

Voice Name Variation

[PIANO]

Grand Piano

Live Grand

Ballad Grand

Bright Grand

[E.PIANO]

Stage E.Piano

DX E.Piano

Vintage E.Piano

Synth Piano

[ORGAN]

Jazz Organ

Rock Organ

Organ Principal

Organ Tutti

[CLV./VIB.]

Harpsichord 8’

Harpsi.8’+4’

E.Clavichord

Vibraphone

[STRINGS]

Strings

Slow Strings

Choir

Synth Pad

[+BASS]

Acoustic Bass

Electric Bass

Bass & Cymbal

Fretless Bass

Lights up

In this example, Ballad Grand (variation 2) in the

[PIANO] button is selected.

Variation

lamp

NOTE

• To familiarize yourself with the characteristics of the voices, listen to the

Demo Songs for each Voice (page 18).

Using Table EQ

Strengthening the Overall Sound

(Sound Boost)

NOTE

C0 C1 C2 C3 C4 C5 C6 C7

A#5: On

A5: Off

While holding down

C#6: On

C6: Off

Highest

key

While holding down

Selecting & Playing Voices

P-125a Owner’s Manual

Reference

You can layer two Voices and play them simultane-

ously to create a more richly textured sound.

Engage Dual.

Choose two desired Voices, then press those Voice

buttons simultaneously.

Note that the Voice of the left side button is desig-

nated as Voice 1, while the Voice of the right side

button is designated as Voice 2. The Variation

lamps indicate the status of Voice 1.

Play the keyboard to enjoy the dual

sound.

To shift the Octave for each Voice:

Setting range: -2 – +2

To adjust the balance between two Voices:

Setting range: -6 – 0 – +6

Settings below “0” increase the volume of Voice 2,

while settings above “0” increase the volume of

Voice 1, in relation to the other.

To exit from Dual, simply press any

Voice button.

Layering Two Voices (Dual)

• You cannot layer two Voices from the same group.

Voice

Down by 1

octave

Voice

Down by 1

octave

F#5

Default setting

(different for

each Voice

combination)

A#5

Default setting

(different for

each Voice

combination)

G5 Up by 1 octave B5 Up by 1 octave

Left: Voice 1 Right: Voice 2

NOTE

C0 C1 C2 C3 C4 C5 C6 C7

F#5

A#5

F5 G5 A5 B5

 Voice 1Voice 2 

While holding

down

C0 C1 C2

C4 C5 C6 C7

D5: up

by 1

C5: down

by 1

C#5: 0

(default setting)

While holding

down

Selecting & Playing Voices

P-125a Owner’s Manual

Reference

Split mode enables you to play two different Voices

on the keyboard — for example, acoustic bass with

your left hand and piano with your right.

Press [+BASS] to engage Split.

The keyboard is divided into the two sections with

the F#2 key as the Split Point. Play the keyboard.

To change the Left Voice to another bass Voice:

Press [+BASS] repeatedly to select the bass

Voices in the [+BASS] group in order. Refer to the

Voice list on page 13.

To change the Left Voice to any Voice

other than bass:

While holding down [+BASS], select a desired

Voice by pressing the Voice button several times

as necessary.

To shift the Octave for each Voice:

Same as in Dual (see previous page).

To adjust the volume balance between two

Voices:

Same as in Dual (see previous page).

To change the Split Point:

While holding [+BASS], press the desired key.

To exit from Split, simply press any

Voice button.

This function allows two different players to play the

instrument, one on the left and the other on the right,

over the same octave range.

Engage Duo.

The keyboard is divided into two sections, with

the E3 key as the Split Point.

One person can play the left section of

the keyboard while the other plays the

right.

Sounds played with the left voice are played from

the left speaker, and sounds played with the right

voice are played from the right speaker.

To select the Voice:

Refer to step 1 on page 13.

To shift the Octave for each section:

Same as in Dual (page 14).

To adjust the volume balance between two

keyboard sections:

Same as in Dual (page 14).

To exit from Duo, perform the same

operation as in step 1.

Pedal function in Duo

• Damper Pedal: Applies Sustain to the right section.

• Sostenuto Pedal: Applies Sustain to both sections.

• Soft Pedal: Applies Sustain to the left section.

Splitting the Keyboard (Split)

• Only Dual, Split or Duo can be called up; both or all cannot be used

together.

• The damper pedal of the pedal unit cannot be used on the left Voice when

a bass Voice is selected for the left Voice.

• The Variation lamps indicate the status of Voice 2.

Split Point (Default: F#2)

Left Voice

(Voice 2)

Right Voice

(Voice 1)

NOTE

Playing Duo

• Different Voices cannot be assigned to the Right Voice and Left Voice.

• The Split Point cannot be changed from E3.

• Only Dual, Split or Duo can be called up; both or all cannot be used

together.

• Turning Duo turns off Reverb, Damper Resonance and Stereophonic

Optimizer.

Split Point (E3)

Left Voice (Voice 2) Right Voice (Voice 1)

Equivalent to C3

(middle C)

Equivalent to C3

(middle C)

While holding

down

NOTE

P-125a Owner’s Manual

Reference

Using the Metronome

The Metronome is convenient for practicing with an accurate tempo.

Press [METRONOME] to start the

Metronome.

Press [METRONOME] again to stop the

Metronome.

While holding down [METRONOME], press the low-

est key.

Setting range: 5 – 280 (default setting: 120)

To increase or decrease the value by 1:

When the metronome is playing back, press [+] to

increase or [-] to decrease. When it is stopped, press

[+] to increase or [-] to decrease while holding down

[METRONOME].

To increase or decrease the value by 10:

While holding down [METRONOME], press the C2

key to decrease the value by 10, C#2 to reset to the

default value, or D2 to increase by 10.

* Refer to the “TEMPO” indications (-10/default/+10) printed

above these keys.

To specify a three-digit value:

For example to specify “80,” press the relevant G1 (8)

and A1 (0) keys in order.

A numeric value is read out when a relevant key is

pressed.

* Refer to the “TEMPO” indications (1 to 9, 0) printed above

these keys.

Setting range: - (default setting: no beat), 2, 3, 4, 5, 6

* Refer to the “METRONOME” indications (- to 6) printed

above these keys.

Setting range: 1 – 10 (default setting: 7)

While holding down [METRONOME], press the F0

key to decrease the value by 1, F#0 key to reset to the

default value, or G0 key to increase by 1.

* Refer to the “VOLUME” indications (-1/default/+1) printed

above these keys.

Voice Confirmation of Current

Tempo Value (in English)

Adjusting the Tempo

While holding

down

Holding either button continuously

increases or decreases the value

Pressing simultaneously reset to

the default setting

Selecting a Beat (Time Signature)

Adjusting the Volume

24 79

35680

C0 C1 C2

C4 C5 C6 C7

While holding

down

–

C0 C1 C2 C3 C4 C5 C6 C7

No beat

While holding

down

P-125a Owner’s Manual

Reference

Setting Various Items for Performances

To set items shown in the tables below, hold down the corresponding buttons or button, and press the correspond-

ing keys on the keyboard. Refer to the separate “Quick Operation Guide.”

Tuning, Transpose

Reverb, Touch Sensitivity

Item Description Keys Settings

Fine-tuning the

Pitch

Using the Tuning setting, you can fine tune the pitch of the entire

instrument. This can be extremely useful when playing your dig-

ital piano along with other instruments or recorded music.

While holding down [METRONOME] and [RHYTHM] simul-

taneously, press [+] or [-] to tune up or down in about 0.2 Hz

steps, or press [+] and [-] simultaneously to reset to the

default setting (440.0 Hz).

Setting range: 414.8 – 440.0 – 466.8 Hz

Resets the pitch to the default (A3 = 440.0

Hz).

C#1 Sets the pitch to A3 = 442.0 Hz.

Key Transposition

You can shift or transpose the pitch of the entire keyboard

up or down in semitones.

For example, if you set the transpose to “+5,” playing a C

key will produce an F pitch. You could, therefore, play a

song as if it was in C major and the digital piano would

transpose it to the key of F major.

Setting range: -6 (F#2) – 0 (C3) – +6 (F#3)

F#2 – B2

Transposes the pitch down (to play lower

notes than the actual keys).

C3 Restores the original pitch (0).

3 – F

Transposes the pitch up (to play higher

notes than the actual keys).

Item Description Keys Settings

Setting the Reverb

Type

Using the digital piano’s Reverb function,

you can add reverberation similar to that

of a concert hall to individual Voices.

Whenever you select a Voice, the most

suitable reverb will be automatically set;

however, you can freely set the Reverb

Type as desired.

Recital Hall: Simulates the clear reverb sound you would

hear in a medium-sized concert hall for piano recitals.

C#2

Concert Hall:

Simulates the gorgeous reverb sound you

would hear in a large concert hall for orchestral performances

Chamber: Suitable for playing chamber music; simulates the

intimate reverb sound you would hear in a spacious room,

such as for classical music recitals.

D#2

Club: Simulates the vivid reverb sound you would hear in a

live music venue or a jazz club.

E2 Off: No effect is applied.

Setting the Reverb

Depth

Adjusts the Reverb Depth.

Setting range: 0 – 20

G2 Decreases by one.

G#2

Restores the default setting (which is the best suited depth

setting for the current Voice.)

A2 Increases by one.

Changing the

Touch Sensitivity

You can specify the degree of Touch Sen-

sitivity (how the sound responds to your

playing strength).

Soft: The volume level does not change much when you

play the keyboard soft or hard.

C#6

Medium: This is the standard piano touch response (default

setting).

Hard: The volume level changes very widely from pianissimo

to fortissimo to facilitate dynamic and dramatic expression.

You have to hit the keys hard to produce a loud sound.

D#6

Fixed: The volume level does not change at all regardless of

whether you play the keyboard soft or hard.

C0 C1 C2 C3 C4 C5 C6 C7

C1 F#2

B2 F#3

C#1

C#3

TransposeTuning

C0 C1 C2 C3 C4 C5 C6 C7

C2 E2 G2

D#6

Touch SensitivityReverb Type Reverb Depth

• Touch Sensitivity cannot be used for organ

Voices and harpsichord Voices.

NOTE

P-125a Owner’s Manual

Reference

Playing Back Songs

Special individual Demo Songs are provided for all of

the Voices of the instrument (except the Bass Voice

Variations 1 – 3).

While holding down [DEMO/SONG], press

one of the Voice buttons as necessary

times to select a desired Voice.

The Demo Songs for all Voices will play back in

sequence. During playback, you can change the

Demo Song by selecting a different Voice.

To select the previous or next Song during

playback:

To play back from the beginning of the Song:

During playback, press [+] and [-] simultaneously

to jump to the playback position at the beginning

of the Song then continue playback at the last

specified tempo.

To adjust the playback tempo:

Holding [-] or [+] changes the value continuously.

Demo Song List

The demonstration pieces listed above are short rearranged excerpts of the origi-

nal compositions. All other songs are original (© Yamaha Corporation).

Press [DEMO/SONG] or [/] to stop

playback.

In addition to the Demo Songs, Preset Songs are pro-

vided for your listening pleasure. Choose a Song from

the Preset Song List on page 28, then follow the instruc-

tions below. Also, up to two External Songs transferred

from a computer can be played back on this instrument.

For details on External Songs, refer to “Connecting to a

Computer” on page 24.

While holding down [DEMO/SONG],

press the key corresponding to the

desired preset Song or External Song to

start playback.

The Preset Songs or External Songs will play back

in sequence.

For details on the key assignments, see separate

“Quick Operation Guide.”

To select the previous or next Song during

playback:

Same as in Demo Songs (see column at left).

To play back from the beginning of the Song:

Same as in Demo Songs (see column at left).

To adjust the playback tempo:

Same as in Demo Songs (see column at left).

Press [DEMO/SONG] or [/] to stop

playback.

Listening to the Voice Demo Songs

• Simply pressing [DEMO/SONG] will start playback of all Demo Songs

from the first (Grand Piano) in sequence.

Voice Name Title

Composer

Ballad Grand

Intermezzo, 6 Stücke, op.118-2 J. Brahms

Organ

Principal

Herr Christ, der ein’ge Gottes-

Sohn, BWV 601

J.S. Bach

Organ Tutti Triosonate Nr.6, BWV 530 J.S. Bach

Harpsichord

8’

Concerto a cembalo obbligato, 2

violini, viola e continuo No.7,

BWV 1058

J.S. Bach

Harpsi.8’+4’

Gigue, Französische Suiten Nr.5,

BWV 816

J.S. Bach

While holding down

NOTE

Previous Song Next Song

Pressing simultaneously

reset to the default value.

While holding

down

Listening to the 50 Preset Songs or

External Songs

C0 C1 C2

C4 C5 C6 C7

Quick

Play

Preset Songs External

Songs

While holding

down

Song Playback and Practice of Each Part

P-125a Owner’s Manual

Reference

This Quick Play feature enables you to specify

whether a Song should play back immediately from

the very first note, or play back any silence or rests

that exist before the first note. While holding down

[DEMO/SONG], press the lowest key to turn this

function off or second lowest key to turn on.

Default setting: on

Song Playback and Practice of Each Part

All Songs (except for the Demo Songs; page 18) let you turn on or off the [L] and [R] parts individually. By turn-

ing off [R], for example, you can practice the [R] part while the [L] part is playing back, and vice versa.

Start playback of the desired Song.

To start the User Song, press [/].

To start a Preset Song, see page 18, “Listening to

the 50 Preset Songs or External Songs.”

While holding down [/], press [L] or

[R] to turn the Part on/off.

Practice the part which is turned off.

Press [DEMO/SONG] or [/] to stop

playback.

Using Quick Play

Second lowest key: On

Lowest key: Off

While holding

down

• The Rhythm part recorded to a User Song cannot be muted.

• Songs 16 – 20 of “50 Classics” are duet songs. The right-hand Part is

for the first player, and the left-hand Part is for the second player.

While holding

down

NOTE

• Selecting another Song or stopping the Song will cancel the on/off status

of the parts.

NOTE

Reference

P-125a Owner’s Manual

Reference

Adding Accompaniment to Your Performance (Rhythm)

You can select a Rhythm (drums and bass accompaniment) from a variety of musical genres, such as Pop and

Jazz, and play along with it. Refer to the Rhythms on page 28.

While holding [RHYTHM], press one of

the C3 – G4 keys to select the desired

Rhythm.

For details on which Rhythm is assigned to each

key, see separate “Quick Operation Guide.”

Press [RHYTHM] to start the percussion

part of the selected Rhythm from the

Intro section.

Setting Intro/Ending on or off

This adds an Intro/Ending to the beginning or at

the end of the rhythm section. You can enable

(On) or disable (Off) the sound of the Intro/Ending

as desired. While holding down [RHYTHM],

press one of the keys: F5 (Intro Off), F#5 (Intro

On), G5 (Ending Off) or G#5 (Ending On).

Default setting: on

Play your performance along with the Rhythm.

Play the keyboard with your both hands. The

instrument will automatically create appropriate

accompaniment bass sound while you play, based

on the chords you play. Less than three notes can

be played to indicate the chords (based on the pre-

viously played chord, etc.). 9th, 11th and 13th

chords cannot be played.

Bass On/Off

While holding down [RHYTHM], press C5 (Off)

or C#5 (On; default setting).

Press [RHYTHM] to stop playback.

The lamp turns off, and the keyboard returns to the

original status.

Setting range: 1 – 10 (Default setting: 7)

While holding down [RHYTHM], press the F0 key to

decrease the value by 1, F#0 to reset to the default

value, or G0 to increase by 1.

* Refer to the “VOLUME” indications (-1/default/+1) printed

above these keys.

Setting range: 5 – 280 (default setting: 120)

Voice confirmation of current Tempo value (in

English):

While holding down [RHYTHM], press the lowest

key.

To increase or decrease the value by 1:

When the Rhythm is playing back, press [+] to

increase or [-] to decrease. When it is stopped, press

[+] to increase or [-] to decrease while holding down

the [RHYTHM].

To increase or decrease the value by 10 or to

specify a three-digit value:

While holding down [RHYTHM], press the same key

as in Metronome Tempo (page 16).

• Intro will not be played back when you start the Rhythm during Song

playback.

• For details on how to play Chords, refer to commercially available chord

books.

C0 C1 C2 C3 C4 C5 C6 C7

C3 – G4

While holding

down

Flashes

NOTE

Adjusting the Volume

Adjusting the Tempo

• The Rhythm tempo setting is reflected also in the Metronome

Holding either button continuously

increases or decreases the value

Pressing simultaneously resets to

the default value

NOTE

P-125a Owner’s Manual

Reference

Recording Your Performance

You can record your keyboard performance as a User Song in SMF format. Up to two Parts (L and R) can be

recorded separately.

You can record a Rhythm with your performance.

Before recording, make the settings

such as Voice, Beat, Tempo and

Rhythm.

Because some of the settings cannot be changed

after the Record mode is engaged, make the set-

tings according to your performance preferences.

Press the [] to engage Record Ready

mode.

The [] lamp will flash according to the current

tempo.

To exit from Record Ready mode, press [].

Play the keyboard or press [/] to start

recording.

You can also start recording by pressing the

[RHYTHM].

Press either [] or [/] to stop

recording.

The [] and [/] lamps flash, indicating that the

recorded data is being stored. After the operation

is completed, the [] and [

/] lamps turns off.

To hear the recorded Song, press [/]

to start playback.

Press [/] again to stop playback.

Part Assignment

When either the Split or Duo is used for recording,

the data as listed below will be recorded to each

part.

You can record your performance to the L part (left

hand part) and R part (right hand part) separately.

Before recording, make the settings

such as Voice, Beat or Rhythm.

While holding down [], press [R] or [L]

for the part you want to record, to

engage Record Ready Mode.

To exit from Record Ready mode, press [].

• Note that the Recording operation replaces already

recorded data with the newly recorded data, since only

one User Song is available. To save the recorded data,

transfer it to a computer as an SMF file. For details, refer to

“Computer-related Operations” on page 8.

• If the data capacity of the instrument approaches full when

you engage Record Ready mode, the [] and [

/] lamps

flash quickly for about three seconds. In this case, your

performance may not be recorded.

• You can record up to 100 KB (or approximately 11,000 notes) on this instru-

ment.

Quick Recording

• You cannot engage Record Ready mode while a Song is playing.

• You can use the Metronome while recording; however, the Metronome

sound will not be recorded.

NOTICE

NOTE

Flashes

NOTE

Lights up Flashes

Recording

• Never turn off the power while the recorded data is

being stored (while the lamps are flashing). Other-

wise, all recorded data will be lost.

L part R part

When Split or

Duo is on:

Keyboard perfor-

mance in the left

hand section

Keyboard perfor-

mance in the right

hand section

Recording Independently to Two

Parts

• If you select a Part containing data, the Recording opera-

tion will replace the already-recorded data with the new

data.

• When you use Split or Duo, use the Quick Recording method. You cannot

record each part separately.

• Rhythm can only be recorded to a blank Song (both L/R parts are empty). If you

want to record a Rhythm, make sure to record first to a blank Song.

NOTICE

NOTE

Recording Your Performance

P-125a Owner’s Manual

Reference

To record the right part ([R]):

To record the left part ([L]):

After a while, the [] lamp will flash at the cur-

rent tempo. When the already recorded data exists,

the [] and [

/] lamps will flash at the current

tempo.

If data has already been recorded to the other

Part:

The data in this Part will be played back while

recording. To turn the Part off or on, hold down

[

/] and press the appropriate Part button.

Start recording.

Play the keyboard or press [/] to start record-

ing. The [] lamp lights up while the [

/] lamp

flashes at the current tempo.

Press either [] or [/] to stop

recording.

The [] and [/] lamps flash, indicating that the

recorded data is being stored. After the operation

is completed, the [] and [

/] lamps will be

turned off.

If desired, record the other part by

repeating Steps 1 – 4.

To hear the recorded Song, Press [/]

to start playback.

Press [/] again to stop playback.

While holding down [], press [DEMO/

SONG].

The [] and [/] lamps flash (in alternation).

To exit from this status, press [].

Press [/] to delete the data of the

entire Song.

After the operation is completed, [] and [/]

lamps turn off.

To delete a specific Part:

While holding down [], press [L] or [R] to

engage the Record Ready mode.

The [] lamp will flash.

Press [/] to start recording without playing the

keyboard.

Press [] or [/] to stop recording.

All data recorded for the selected Part will be

deleted, and the lamp turns off.

The following parameter settings of the Song can be

changed after the Record operation is completed.

For individual parts:

Voice, Balance, Reverb Depth, Damper Reso-

nance

For the entire Song:

Tempo, Reverb Type

Make settings for the above parameters,

as desired.

While holding down [], press the

desired Part button to engage Record

Ready mode.

If you want to change the value of the parameters

shared by two parts, select either part.

The [] lamp will flash according to the current

tempo.

While holding down [], press [/] to

change the initial settings and to exit

from Record Ready mode.

• You can use the Metronome while recording; however, the Metronome

sound will not be recorded.

• Never turn off the power while the recorded data is

being stored (while the lamps are flashing). Other-

wise, all recorded data will be lost.

While holding

down

While holding

down

NOTE

NOTICE

Deleting the User Song

• Rhythm cannot be deleted with this operation.

Changing the Initial Settings of the

Recorded Song

• In this status, do not press [/] or any key. Other-

wise, recording starts and the data will be deleted.

NOTE

NOTICE

P-125a Owner’s Manual

Reference

Connecting Other Equipment

Use these jacks to connect your digital piano to pow-

ered speakers and the like in order to play at higher

volumes. Refer to the diagram below and use audio

cables for connection.

Speaker on/off setting

You can set whether the sound of this instrument is

always output from its built-in speaker or not. While

holding down [METRONOME] and [RHYTHM]

simultaneously, press the D6 key to turn off, D#6 to

turn on, or E6 (AUTO) to mute the sound output from

its built-in speaker when headphones are connected.

(This is the default setting.)

Default setting: Auto

* Refer to the “SPEAKER OFF/ON/AUTO” indications printed

above these keys.

Adjusting the volume of the external speakers

This parameter is used to specify how the volume of

audio output via the [AUX OUT] jack is controlled.

When set to “Variable (Off),” you can adjust the vol-

ume using [MASTER VOLUME]; when set to “Fixed

(On),” the volume will be fixed at the same level,

regardless of the slider position. While holding down

[METRONOME] and [RHYTHM] simultaneously,

press the F5 key to set to “Variable,” or press the F#5

key to set to “Fixed.”

Default setting: Variable (Off)

With your smart device (such as an iPhone or iPad)

connected to your digital piano, you can use a wide

range of apps to expand the functionality of your

instrument in exciting new ways.

For information about the compatible apps and smart

devices, access the web page of the respective apps on

the following page:

https://www.yamaha.com/kbdapps/

For details on how to connect the devices, refer to the

“Smart Device Connection Manual” on page 8.

Smart device application — Smart Pianist

Smart Pianist (free download) lets you make various

settings intuitively while viewing the screen, and

allows you to display the notation, depending on the

selected data.

The functions that can be set vary depending on the

model. For details, access the “Smart Pianist” page on

the website above.

Use a USB cable to connect this instrument to a smart

device. For instructions on connecting, Connection Wiz-

ard in Smart Pianist will guide you according to the oper-

ating condition and environment. To start the Connection

Wizard, tap “ ” (Menu) located at the upper left of the

screen to open the Menu display, and then tap “Instru-

ment”



“Start Connection Wizard.”

• Before connecting the instrument to other electronic components, turn off the power to all the components. Before turning the

power on or off to all components, set all volume levels to minimum (0). Otherwise, electrical shock or damage to the compo-

nents may result.

CAUTION

Connecting External Speakers

• When the instrument’s sound is output to an external

device, first turn on the power to the instrument, then to

the external device. Reverse this order when you turn the

power off.

• Select cables and plugs with the lowest resistance possible.

• Use only the [L/L+R] AUX OUT jack if you wish to output the digital piano’s

sound in mono.

• When this parameter is set to “Fixed,” the headphones volume will also be

fixed.

Powered speakers

AUX INAUX OUT

mono phone

plugs

(standard)

Audio cable

Instrument

mono phone

plugs

(standard)

NOTICE

NOTE

Connecting a Smart Device

• Activating the “Smart Pianist” app while the instrument is

connected to the smart device overwrites the settings on

the instrument by that of “Smart Pianist.”

NOTICE

Data Backup and Initializing

P-125a Owner’s Manual

Reference

Connecting the [USB TO HOST] terminal of this

instrument and the computer via a USB cable allows

you to transmit/receive MIDI data to/from the com-

puter. For details on using a computer with this instru-

ment, refer to the “Computer-related Operations” on

page 8.

Data Backup and Initializing

The following data will automatically be maintained

as backup data even if you turn off the power.

• User Song

• External Song

• Backup data:

Metronome/Rhythm Volume, Metronome Beat,

Touch Sensitivity, Tuning, Split Point, Auto Power

OFF setting, IAC on/off, IAC Depth, Intro/Ending

on/off, Operation Confirmation Sounds on/off,

AUX OUT volume settings, Stereophonic Opti-

mizer on/off, Speaker on/off, Table EQ on/off

To save the User Song data to a computer:

The User Song (USERSONG00.mid) can be trans-

ferred to a computer and saved as a SMF file. For

details, refer to the “Computer-related Operations” on

page 8.

To initialize the backup data:

While holding down the highest key, turn the power

on to initialize the backup data to the factory initial

settings.

Both the [] and [

/] lamps flash, indicating that

the initialization is being executed. After the operation

is completed, both lamps turn off.

Connecting to a Computer

• Use an AB type USB cable of less than 3 meters. USB 3.0

cables cannot be used.

• Only MIDI data can be transmitted/received from/to this instrument. No audio

data can be transmitted/received.

[USB TO HOST] terminal

Instrument

USB cable

Computer

NOTICE

NOTE

Types of file that can be exchanged with a com-

puter

Songs:

• User Song (USERSONG00 .mid)

• External Songs: files with a .mid extension (SMF

format 0 or 1)

• Before you transfer an SMF file from a computer, make

sure to transfer the User Song to a computer for safe

keeping, since already-recorded data will be replaced

with the new transfer.

• Certain MIDI files in SMF format 0 or 1 may contain data that is not sup-

ported by your digital piano. In such a case, the files may not play as origi-

nally intended.

NOTICE

NOTE

• If this instrument somehow malfunctions or fails to operate properly, try initial-

izing the data as described above.

Highest key

While holding

down

NOTE

P-125a Owner’s Manual

Appendix

Troubleshooting

Specifications

Dimensions (W x D X H)

• 1,326 mm × 295 mm × 166 mm (52-3/16” x 11-5/8” x 6-9/16”)

Weight

• 11.8 kg (26 lbs. 0 oz.)

Keyboards

• 88 keys (A-1 – C7)

• GHS (Graded Hammer Standard) keyboard with matte black keytops

• Touch Sensitivity (Hard/Medium/Soft/Fixed)

Tone Generation / Voice

• Piano Sound: Pure CF Sound Engine

• Piano Effect: Damper Resonance, Stereo Sustain Samples, Key-

off Samples, String Resonance

• 24 Preset Voices

• Polyphony: 192

Effects/Functions

• 4 Reverb types, Sound Boost, Table EQ, Intelligent Acoustic

Control (IAC), Stereophonic Optimizer, Dual, Split, Duo

Accompaniment Rhythm

• Preset: 20

Song Recording/Playback (MIDI data only)

• Preset: 21 Voice Demo Songs, 50 Classic Songs

• 1 User Song with 2 tracks

• Data Capacity: Approx. 100 KB/Song (approx. 11,000 notes)

• Compatible Data Format

Playback: SMF (format 0, format 1)

Recording: SMF (format 0)

Storage

• Internal Memory: Total maximum size approx. 900 KB (User

song: One song approx. 100 KB, Loading song data from a com-

puter: Up to 2 Songs)

Overall Controls

• Transpose: -6 – 0 – +6

• Fine Tuning: 414.8 – 440.0 – 466.8 Hz

• Metronome

• Tempo: 5 – 280

Connectivity

• DC IN (12 V), PHONES (Standard stereo phone jack) x 2, SUS-

TAIN, PEDAL UNIT, USB TO HOST, AUX OUT

Amplifiers

• 7 W x 2

Speakers

• 12 cm x 2 + 4 cm x 2

Power Supply

• AC Adaptor PA-150 or an equivalent recommended by Yamaha

• Power Consumption: 9 W (When using PA-150 AC adaptor)

• Auto Power Off Function

Included Accessories

• Owner’s Manual, Quick Operation Guide, AC Adaptor PA-150 or

an equivalent recommended by Yamaha*, Online Member Prod-

uct Registration, Footswitch, Music Rest

* May not be included depending on your particular area.

Please check with your Yamaha dealer.

Separately Sold Accessories

• Keyboard Stand (L-125), Pedal Unit (LP-1), Foot Pedal (FC3A),

Footswitch (FC4A/FC5), Headphones (HPH-50/HPH-100/HPH-

150), AC Adaptor (PA-150 or an equivalent recommended by

Yamaha), Wireless MIDI adaptor (UD-BT01), Keyboard Bag (SC-

KB850)

* The contents of this manual apply to the latest specifications as of the

publishing date. To obtain the latest manual, access the Yamaha website

then download the manual file. Since specifications, equipment or sepa-

rately sold accessories may not be the same in every locale, please check

with your Yamaha dealer.

Problem Possible Cause and Solution

When the instrument is turned on or off, a pop-

ping sound is temporarily produced.

This is normal and indicates that the instrument is receiving electrical power.

The instrument does not turn on.

The instrument has not been plugged in properly. Securely connect the AC adaptor to

the DC IN jack on the instrument and to the AC outlet (page 10).

When the instrument is turned on, the power

turns off suddenly and unexpectedly.

If an AC adaptor other than the one specified is used, the power may be turned off sud-

denly and unexpectedly.

The instrument is automatically turned off even if

no operation is done.

This is normal. This occurs due to the Auto Power Off function (page 10).

Noise is heard from the speakers or head-

phones.

The noise may be due to interference caused by the use of a mobile phone in close proxim-

ity to the instrument. Turn off the mobile phone, or use it further away from the instrument.

Noise is heard from the instrument’s speakers or

headphones when using the instrument with your

smart device, such as an iPhone/iPad.

When you use the instrument along with your smart device, we recommend that you set

that device’s “Airplane Mode” to on in order to avoid noise caused by communication.

The overall volume is low, or no sound is heard.

The Master Volume is set too low; set it to an appropriate level using the [MASTER

VOLUME] (page 11).

The digital piano’s speakers are turned off. Turn them back on (page 23).

Make sure a pair of headphones or conversion adaptor is not connected to the head-

phones jack (page 11).

Make sure that Local Control is ON. For details, refer to “MIDI Reference” (page 8) on

the website.

Moving the [MASTER VOLUME] slider does not

change the volume of the headphones.

Have you set the external speaker volume to “Fixed”?

Change the external speaker volume to “Variable.” (page 23)

The pedal has no effect.

The pedal cable/plug may not be properly connected. Make sure to securely insert the

pedal plug into the [SUSTAIN] or [PEDAL UNIT] jack (page 12).

The footswitch (for sustain) seems to produce

the opposite effect.

The polarity of the footswitch is reversed because the footswitch was pressed when the

power was turned on. Turn off the power and turn it on again to reset the function. Make

sure to not press the footswitch when turning the power on.

Appendix

P-125a Owner’s Manual

Appendix

Voice List (Detailed)

Voice Button

(Group)

Variation Voice Name Description

[PIANO]

Grand Piano

This sound was sampled from a concert grand piano. It uses different samples

depending on the strength of your playing and produces smoother tonal changes.

Even the tonal changes produced by the damper pedal and the subtle sounds of

releasing a key are reproduced. The sympathetic vibration (string resonance) that

occurs among the strings of an acoustic piano has also been simulated. Suitable not

only for classical compositions but also for piano pieces of any style.

1 Live Grand Spacious and clear piano with bright reverb. Good for popular music.

2 Ballad Grand Warm and soft piano sound. Good for relaxing music.

3 Bright Grand

Bright piano sound. Clear tone helps the sound to “cut through” when playing in an

ensemble.

[E.PIANO]

Stage E.Piano

The sound of an electric piano using hammer-struck metallic “tines.” Soft tone when

played lightly, and an aggressive tone when played hard.

1 DX E.Piano

An electronic piano sound created by FM synthesis. Extremely “musical” response

with varying timbre according to keyboard dynamics. Good for standard popular

music.

2 Vintage E.Piano A slightly different electric piano sound often heard in rock and popular music.

3 Synth Piano

A synth-generated type electronic piano sound often heard in popular music. Used in

the Dual mode it blends well with an acoustic piano Voice.

[ORGAN]

Jazz Organ

A “tonewheel” type electric organ. Often heard in jazz and rock music. When the sep-

arately sold Pedal Unit (LP-1) is connected, the rotary speed of the “ROTARY SP”

effect can be switched by using the left pedal.

1 Rock Organ Bright and edgy electric organ sound. Good for rock music.

2 Organ Principal

A typical pipe organ sound (8 feet + 4 feet + 2 feet). Good for sacred music from the

Baroque period.

3 Organ Tutti

This is the organ’s full coupler sound often associated with Bach’s “Toccata and

Fugue.”

[CLV./VIB.]

Harpsichord 8’

The definitive instrument for baroque music. Authentic harpsichord sound, with

plucked strings, no touch response, and characteristic key-release sound.

1 Harpsi.8’+4’ Mixes the same Voice an octave higher for a more brilliant tone.

2 E.Clavichord

A hammer-struck keyboard instrument that utilizes an electric pickup that is often

heard in funk and soul music. Its tone is noted for the unique sound produced when

the keys are released.

3 Vibraphone

Played with relatively soft mallets. The tone becomes more metallic the harder you

play. When the separately sold Pedal Unit (LP-1) is connected, the left pedal switches

Vibrato on and off.

[STRINGS]

Strings

Stereo-sampled, large-scale strings ensemble with realistic reverb. Try combining this

Voice with piano in the Dual mode.

1 Slow Strings

Spacious strings ensemble with a slow attack. Try combining this Voice with a piano

or electric piano in the Dual mode.

2 Choir A big, spacious choir Voice. Perfect for creating rich harmonies in slow pieces.

3 Synth Pad

A warm, mellow, and spacious synth sound. Ideal for sustained parts in the back-

ground of an ensemble.

[+BASS]

Acoustic Bass An upright bass played fingerstyle. Ideal for jazz and Latin music.

1 Electric Bass

Electric bass for a wide range of music styles, including jazz, rock, popular, and

more.

2 Bass & Cymbal Adds a cymbal Voice to the bass sound. Ideal for walking bass lines in jazz tunes.

3 Fretless Bass The sound of a fretless bass. Suitable for styles such as jazz and fusion.

P-125a Owner’s Manual

Appendix

Index

Numerics

50 Preset Songs ..................................................... 18, 28

AC adaptor ..................................................................10

Accessories ................................................................... 8

Accompaniment ..........................................................20

Auto Power Off ........................................................... 10

Backup ......................................................................... 24

Beat ..............................................................................16

Computer .....................................................................24

Computer-related Operations ......................................8

Damper (Right) Pedal ................................................12

Damper Resonance ..................................................... 12

Delete (User Song) ..................................................... 22

Demo Song List ..........................................................18

Demo Songs ................................................................18

Dual .............................................................................14

Duo ..............................................................................15

External Songs ............................................................18

Footswitch ...................................................................12

Headphones ................................................................. 11

Initializing ................................................................... 24

Intelligent Acoustic Control (IAC) ........................... 11

Key Transposition ....................................................... 17

Manuals ......................................................................... 8

Metronome .................................................................. 16

MIDI Basics ..................................................................8

MIDI Reference ............................................................8

Music Rest .................................................................... 8

Octave ..........................................................................14

Operation Confirmation Sounds ............................... 11

Part ............................................................................... 19

Pedal ............................................................................ 12

Pedal Unit ................................................................... 12

Pitch ............................................................................. 17

Playback (User Song) ................................................ 21

Playback (Voice Demo/50 Preset Song) .................. 18

Power ........................................................................... 10

Practice ........................................................................ 19

Quick Operation Guide ................................................ 8

Quick Play .................................................................. 19

Recording .................................................................... 21

Reverb ......................................................................... 17

Rhythm .................................................................. 20, 28

Smart device ............................................................... 23

Smart Device Connection Manual .............................. 8

Smart Pianist ............................................................... 23

Soft (Left) Pedal ......................................................... 12

Songs ..................................................................... 18, 28

Sostenuto (Center) Pedal ........................................... 12

Sound Boost ................................................................ 13

Speakers ...................................................................... 23

Split ............................................................................. 15

Stereophonic Optimizer ............................................. 11

Sustain ......................................................................... 12

Table EQ ..................................................................... 13

Tempo .............................................................. 16, 18, 20

Terminals ...................................................................... 9

Touch Sensitivity ........................................................ 17

Transpose .................................................................... 17

Troubleshooting .......................................................... 25

Tuning ......................................................................... 17

USB TO HOST ............................................................ 9

User Song .................................................................... 21

Variation Voice ........................................................... 13

Vo i c e L i s t .................................................................... 13

Voice List (Detailed) .................................................. 26

Vo i c e s .......................................................................... 13

Vo l u m e .................................................................. 16, 20

Appendix

P-125a Owner’s Manual

List

50 Preset Songs (50 Classical Music Masterpieces) Rhythms

No. Key Song Name Composer

Arrangements

1C2Canon D dur J. Pachelbel

2C#2 Air On the G String J. S. Bach

3D2Jesus, Joy of Man’s Desiring J. S. Bach

4D#2 Twinkle, Twinkle, Little Star Traditional

5E2

Piano Sonate op.31-2

“Tempest” 3rd mov.

L. v. Beethoven

6F2Ode to Joy L. v. Beethoven

7F#2 Wiegenlied op.98-2 F. P. Schubert

8G2Grande Valse Brillante F. F. Chopin

9G#2 Polonaise op.53 “Héroïque” F. F. Chopin

10 A2 La Campanella F. Liszt

11 A #2 Salut d’amour op.12 E. Elgar

12 B2 From the New World A. Dvořák

13 C3 Sicilienne G. U. Fauré

14 C#3 Clair de lune C. A. Debussy

15 D3 Jupiter (The Planets) G. Holst

Duets

16 D#3

Menuett (Eine kleine

Nachtmusik K.525)

W. A. Mozart

17 E3 Menuett G dur L. v. Beethoven

18 F3 Marcia alla Turca L. v. Beethoven

19 F#3

Piano Concerto No.1 op.11

2nd mov.

F. F. Chopin

20 G3 The Nutcracker Medley P. I. Tchaikovsky

Original Compositions

21 G#3

Prelude (Wohltemperierte

Klavier I No.1)

J. S. Bach

22 A3 Menuett G dur BWV Anh.114 J. S. Bach

23 A#3

Piano Sonate No.15 K.545

1st mov.

W. A. Mozart

24 B3 Turkish March W. A. Mozart

25 C4

Piano Sonate op.13

“Pathétique” 2nd mov.

L. v. Beethoven

26 C#4 Für Elise L. v. Beethoven

27 D4

Piano Sonate op.27-2

“Mondschein” 1st mov.

L. v. Beethoven

28 D#4 Impromptu op.90-2 F. P. Schubert

29 E4 Frühlingslied op.62-6

J. L. F. Mendelssohn

30 F4 Fantaisie-Impromptu F. F. Chopin

31 F#4

Etude op.10-3 “Chanson de

l’adieu”

F. F. Chopin

32 G4

Etude op.10-12

“Revolutionary”

F. F. Chopin

33 G#4 Valse op.64-1 “Petit chien” F. F. Chopin

34 A4 Nocturne op.9-2 F. F. Chopin

35 A#4

Nocturne KK4a-16/BI 49

[Posth.]

F. F. Chopin

36 B4 Träumerei R. Schumann

37 C5 Barcarolle P. I. Tchaikovsky

38 C#5 La prière d’une Vierge T. Badarzewska

39 D5 Liebesträume No.3 F. Liszt

40 D#5 Blumenlied G. Lange

41 E5 Humoresque A. Dvořák

42 F5 Arietta E. H. Grieg

43 F#5 Tango (España) I. Albéniz

44 G5 The Entertainer S. Joplin

45 G#5 Maple Leaf Rag S. Joplin

46 A5 La Fille aux Cheveux de Lin C. A. Debussy

47 A#2 Arabesque No.1 C. A. Debussy

48 B5 Cakewalk C. A. Debussy

49 C6 Je te veux E. Satie

50 C#6 Gymnopédies No.1 E. Satie

Category No. Name

Pop&Rock

1 8Beat

2 16Beat

3Shuffle1

4Shuffle2

5Shuffle3

6 Gospel

7 8BeatBallad

86-8SlowRock

Jazz

9 FastJazz

10 SlowJazz

11 Swing

12 JazzWaltz

Latin

13 Samba

14 BossaNova

15 Rumba

16 Salsa

Kids&Holiday

17 KidsPop

18 6-8March

19 ChristmasSwing

20 Christmas3-4

Memo

For details of products, please contact your nearest Yamaha representative or the authorized distributor listed below.

CANADA

Yamaha Canada Music Ltd.

135 Milner Avenue, Toronto, Ontario M1S 3R1,

Canada

Tel: +1-416-298-1311

U.S.A.

Yamaha Corporation of America

6600 Orangethorpe Avenue, Buena Park, CA 90620,

U.S.A.

Tel: +1-714-522-9011

MEXICO

Yamaha de México, S.A. de C.V.

Av. Insurgentes Sur 1647 Piso 9, Col. San José

Insurgentes, Delegación Benito Juárez, CDMX,

C.P. 03900, México

Tel: +52-55-5804-0600

BRAZIL

Yamaha Musical do Brasil Ltda.

Praça Professor José Lannes, 40-Cjs 21 e 22, Brooklin

Paulista Novo CEP 04571-100 – São Paulo – SP,

Brazil

Tel: +55-11-3704-1377

ARGENTINA

Yamaha Music Latin America, S.A.,

Sucursal Argentina

Olga Cossettini 1553, Piso 4 Norte,

Madero Este-C1107CEK,

Buenos Aires, Argentina

Tel: +54-11-4119-7000

PANAMA AND OTHER LATIN

AMERICAN REGIONS/

CARIBBEAN REGIONS

Yamaha Music Latin America, S.A.

Edificio Torre Davivienda, Piso: 20

Avenida Balboa, Marbella, Corregimiento de Bella

Vista, Ciudad de Panamá, Rep. de Panamá

Tel: +507-269-5311

THE UNITED KINGDOM/IRELAND

Yamaha Music Europe GmbH (UK)

Sherbourne Drive, Tilbrook, Milton Keynes,

MK7 8BL, U.K.

Tel: +44-1908-366700

GERMANY

Yamaha Music Europe GmbH

Siemensstrasse 22-34, 25462 Rellingen, Germany

Tel: +49-4101-303-0

SWITZERLAND/LIECHTENSTEIN

Yamaha Music Europe GmbH, Branch

Switzerland in Thalwil

Seestrasse 18a, 8800 Thalwil, Switzerland

Tel: +41-44-3878080

AUSTRIA/CROATIA/

CZECH REPUBLIC

HUNGARY/ROMANIA/SLOVAKIA/

SLOVENIA

Yamaha Music Europe GmbH, Branch Austria

Schleiergasse 20, 1100 Wien, Austria

Tel: +43-1-60203900

POLAND

Yamaha Music Europe

Sp.z o.o. Oddzia w Polsce

ul. Wielicka 52, 02-657 Warszawa, Poland

Tel: +48-22-880-08-88

BULGARIA

Dinacord Bulgaria LTD.

Bul.Iskarsko Schose 7 Targowski Zentar Ewropa

1528 Sofia, Bulgaria

Tel: +359-2-978-20-25

MALTA

Olimpus Music Ltd.

Valletta Road, Mosta MST9010, Malta

Tel: +356-2133-2093

NETHERLANDS/BELGIUM/

LUXEMBOURG

Yamaha Music Europe, Branch Benelux

Clarissenhof 5b, 4133 AB Vianen, The Netherlands

Tel: +31-347-358040

FRANCE

Yamaha Music Europe

7 rue Ambroise Croizat, Zone d'activités de Pariest,

77183 Croissy-Beaubourg, France

Tel: +33-1-6461-4000

ITALY

Yamaha Music Europe GmbH, Branch Italy

Via Tinelli N.67/69 20855 Gerno di Lesmo (MB),

Italy

Tel: +39-039-9065-1

SPAIN/PORTUGAL

Yamaha Music Europe GmbH Ibérica, Sucursal

en España

Ctra. de la Coruña km. 17,200, 28231

Las Rozas de Madrid, Spain

Tel: +34-91-639-88-88

GREECE

Philippos Nakas S.A. The Music House

19th klm. Leof. Lavriou 190 02 Peania – Attiki,

Greece

Tel: +30-210-6686260

SWEDEN

Yamaha Music Europe GmbH Germany Filial

Scandinavia

JA Wettergrensgata 1, 400 43 Göteborg, Sweden

Tel: +46-31-89-34-00

DENMARK

Yamaha Music Denmark,

Fillial of Yamaha Music Europe GmbH, Tyskland

Generatorvej 8C, ST. TH., 2860 Søborg, Denmark

Tel: +45-44-92-49-00

FINLAND

F-Musiikki Oy

Antaksentie 4

FI-01510 Vantaa, Finland

Tel: +358 (0)96185111

NORWAY

Yamaha Music Europe GmbH Germany -

Norwegian Branch

Grini Næringspark 1, 1332 Østerås, Norway

Tel: +47-6716-7800

ICELAND

Hljodfaerahusid Ehf.

Sidumula 20

IS-108 Reykjavik, Iceland

Tel: +354-525-5050

CYPRUS

Nakas Music Cyprus Ltd.

Nikis Ave 2k

1086 Nicosia

Tel: + 357-22-511080

Major Music Center

21 Ali Riza Ave. Ortakoy

P.O.Box 475 Lefkoa, Cyprus

Tel: (392) 227 9213

RUSSIA

Yamaha Music (Russia) LLC.

Room 37, entrance 7, bld. 7, Kievskaya street,

Moscow, 121059, Russia

Tel: +7-495-626-5005

OTHER EUROPEAN REGIONS

Yamaha Music Europe GmbH

Siemensstrasse 22-34, 25462 Rellingen, Germany

Tel: +49-4101-303-0

Yamaha Music Gulf FZE

JAFZA-16, Office 512, P.O.Box 17328,

Jebel Ali FZE, Dubai, UAE

Tel: +971-4-801-1500

TURKEY

Yamaha Music Europe GmbH

Merkezi Almanya Türkiye stanbul ubesi

Mor Sumbul Sokak Varyap Meridian Business

1.Blok No:1 113-114-115

Bati Atasehir Istanbul, Turkey

Tel: +90-216-275-7960

ISRAEL

RBX International Co., Ltd.

P.O Box 10245, Petach-Tikva, 49002

Tel: (972) 3-925-6900

OTHER REGIONS

Yamaha Music Gulf FZE

JAFZA-16, Office 512, P.O.Box 17328,

Jebel Ali FZE, Dubai, UAE

Tel: +971-4-801-1500

THE PEOPLE’S REPUBLIC OF CHINA

Yamaha Music & Electronics (China) Co., Ltd.

2F, Yunhedasha, 1818 Xinzha-lu, Jingan-qu,

Shanghai, China

Tel: +86-400-051-7700

HONG KONG

Tom Lee Music Co., Ltd.

11/F., Silvercord Tower 1, 30 Canton Road,

Tsimshatsui, Kowloon, Hong Kong

Tel: +852-2737-7688

INDIA

Yamaha Music India Private Limited

P-401, JMD Megapolis, Sector-48, Sohna Road,

Gurugram-122018, Haryana, India

Tel: +91-124-485-3300

INDONESIA

PT Yamaha Musik Indonesia Distributor

Yamaha Music Center Bldg. Jalan Jend. Gatot

Subroto Kav. 4, Jakarta 12930, Indonesia

Tel: +62-21-520-2577

KOREA

Yamaha Music Korea Ltd.

11F, Prudential Tower, 298, Gangnam-daero,

Gangnam-gu, Seoul, 06253, Korea

Tel: +82-2-3467-3300

MALAYSIA

Yamaha Music (Malaysia) Sdn. Bhd.

No.8, Jalan Perbandaran, Kelana Jaya, 47301

Petaling Jaya, Selangor, Malaysia

Tel: +60-3-78030900

SINGAPORE

Yamaha Music (Asia) Private Limited

Block 202 Hougang Street 21, #02-00,

Singapore 530202, Singapore

Tel: +65-6740-9200

TAIWAN

Yamaha Music & Electronics Taiwan Co., Ltd.

2F., No.1, Yuandong Rd., Banqiao Dist.,

New Taipei City 22063, Taiwan (R.O.C.)

Tel: +886-2-7741-8888

THAILAND

Siam Music Yamaha Co., Ltd.

3, 4, 15, 16th Fl., Siam Motors Building,

891/1 Rama 1 Road, Wangmai,

Pathumwan, Bangkok 10330, Thailand

Tel: +66-2215-2622

VIETNAM

Yamaha Music Vietnam Company Limited

15th Floor, Nam A Bank Tower, 201-203 Cach

Mang Thang Tam St., Ward 4, Dist.3,

Ho Chi Minh City, Vietnam

Tel: +84-28-3818-1122

OTHER ASIAN REGIONS

https://asia-latinamerica-mea.yamaha.com/

index.html

AUSTRALIA

Yamaha Music Australia Pty. Ltd.

Level 1, 80 Market Street, South Melbourne,

VIC 3205 Australia

Tel: +61-3-9693-5111

NEW ZEALAND

Music Works LTD

P.O.BOX 6246 Wellesley, Auckland 4680,

New Zealand

Tel: +64-9-634-0099

REGIONS AND TRUST

TERRITORIES IN PACIFIC OCEAN

https://asia-latinamerica-mea.yamaha.com/

index.html

NORTH AMERICA

CENTRAL & SOUTH AMERICA

EUROPE

AFRICA

MIDDLE EAST

ASIA

OCEANIA

DMI30

Head Office/Manufacturer: Yamaha Corporation 10-1, Nakazawa-cho, Naka-ku, Hamamatsu, 430-8650, Japan

Importer (European Union): Yamaha Music Europe GmbH Siemensstrasse 22-34, 25462 Rellingen, Germany

Importer (United Kingdom): Yamaha Music Europe GmbH (UK) Sherbourne Drive, Tilbrook, Milton Keynes, MK7 8BL, United Kingdom

VFU0680

Manual Development Group

Published 05/2022 POTY-A0

Yamaha Global Site

https://www.yamaha.com/

Yamaha Downloads

https://download.yamaha.com/

Yamaha P125AB P-125a 88-Key Digital Piano

Product's Documents

User Manual

Specifications

Yamaha P125AB Questions and Answers