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Using MIDI
E-66
Using MIDI
The letters “MIDI” stand for “Musical Instrument Digital
Interface”, which is the name of a worldwide standard for
digital signals and connectors that makes it possible to
exchange musical data between musical instruments and
computers (devices) produced by different manufacturers.
MIDI compatible equipment can exchange keyboard key
press, key release, tone change, and other data as “messages”.
Though you do not need any special knowledge about MIDI
to use this piano as a stand-alone unit, MIDI operations
require a bit of specialized knowledge. This section provides
you with an overview of MIDI that will help to get you going.
MIDI messages are sent out through the MIDI OUT terminal
of one device to the MIDI IN terminal of another device over
a MIDI cable. To send a message from this piano to another
device, for example, you must use a MIDI cable to connect the
MIDI OUT terminal of this piano to the MIDI IN terminal of
the other device. To send MIDI messages back to this piano,
you need to use a MIDI cable to connect the other device’s
MIDI OUT terminal to the MIDI IN terminal of this piano.
To use a computer or other MIDI device to record and
playback the MIDI data produced by this piano, you must
connect the MIDI IN and MIDI OUT terminals of both devices
in order to send and receive data.
There is a third MIDI terminal named MIDI THRU, which
passes any MIDI messages received by the MIDI IN terminal
on to another device.
1 Computer, etc.
This piano also has a USB terminal that can be used to
connect to a computer. See “Connecting to a Computer” on
page E-69 for more information.
MIDI allows you to send the data for multiple parts at the
same time, with each part being sent over a separate “MIDI
channel”. There are 16 MIDI channels, numbered 1 through
16, and MIDI channel data is always included whenever you
exchange data (key press, pedal operation, etc.).
This piano is equipped with “multi-timbre” capabilities,
which means it can receive messages over all 16 MIDI
channels and play up to 16 parts at the same time. Keyboard
and pedal operations performed on this piano are sent out by
selecting a MIDI channel (1 to 16) and then sending the
appropriate message.
Though MIDI makes it possible to exchange musical data
between devices produced by different manufacturers, MIDI
musical data does not indicate the actual notes themselves,
but rather information on whether a keyboard key is pressed
or released, and the tone number.
If tone number 1 on a keyboard produced by Company A is
PIANO while tone number 1 on a Company B’s keyboard is
BASS, for example, data that is played using the PIANO tone
on Company A’s keyboard will be played using the BASS
tone on Company B’s keyboard. If a computer, sequencer or
other device with auto accompaniment capabilities is used to
produce music data for the Company A keyboard which has
16 parts (16 channels) and then that data is sent to the
Company B keyboard which can receive only 10 parts (10
channels), some of the parts will not sound.
To overcome problems such as these, the industry has come
up with standard numbering for tones, pads, and other
general factors that determine the sound source
configuration. This standard is called “General MIDI”.
General MIDI defines the tone numbering sequence, the
drum sound numbering sequence, the number of MIDI
channels that can be used, and other general factors that
determine the sound source configuration. Because of this,
musical data produced on a General MIDI sound source can
be played back using similar tones and identical nuances as
the original, even when played on another manufacturer’s
sound source.
This piano conforms to General MIDI standards, so it can be
connected to a computer or other device and used to play
back General MIDI data that has been purchased,
downloaded from the Internet, or obtained from any other
source.
What is MIDI?
MIDI Connections
MIDI Channels
General MIDI
426-E-068A
PL40NE01-1.book 66 ページ ２００２年７月２３日 火曜日 午後６時５２分
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