Midi Messages; Channel Messages; System Messages - Yamaha Basics Basics

4.

MIDI Messages

MIDI data (messages) can be divided into two groups:
The following explanation shows an example of MIDI messages. For more details about MIDI messages—for
example, when you want to edit the recorded MIDI data—please refer to any of the fine MIDI guidebooks that
are commercially available.

■ Channel Messages

When you perform on a MIDI instrument, the following messages are generated.
Channel Message Examples
Instrument Operation
Playing the keyboard
Selecting a Voice
Changing the volume, pressing Sustain Pedal, etc.
Moving the Pitch Bend Wheel
Pressing the key down after the note is played

■ System Messages

This is data that is used in common by the entire MIDI system. These include System Exclusive Messages for
transferring data unique to each instrument manufacturer and Realtime Messages for controlling the MIDI
devices.
NOTE
The messages transmitted/received by your instrument are shown in the MIDI Data Format and MIDI Implementa-
tion Chart included in your instrument.
Channel messages and System messages.
Note On/Off (When the key was played/released)
Note Number (Which key was played)
Velocity (How strong the key was played)
Program Change
Control Change
Pitch Bend
After Touch
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Messages