Fred’s Lab TOORO, User And Service Manual

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11 MIDI IMPLEMENTATION
11 MIDI Implementation
11.1 Channel Voice Messages
Channel Voice Messages are used to send basic music events to one specific channel or
part. They consists in 3 bytes: the status byte, followed by two data bytes. Here follows
the list of supported messages.
11.1.1 Note Off
Stops the playback of a note.
Byte: 0 1 2
Data: 0x8c note velo
c = MIDI channel (0 - 15)
note = MIDI note (0 - 127)
velo = note velocity (0 - 127)
11.1.2 Note On
Starts the playback of a note.
Byte: 0 1 2
Data: 0x9c note velo
c = MIDI channel (0 - 15)
note = MIDI note (0 - 127)
velo = note velocity (1 - 127)*
* Note: a velocity of 0 corresponds to a Note off event.
11.1.3 Polyphonic Aftertouch
Polyphonic aftertouch / pressure
Byte: 0 1 2
Data: 0xAc note value
c = MIDI channel (0 - 15)
note = MIDI note
value = aftertouch value
11.1.4 Controller Change
Modifies a specific sound parameter value of the given channel (= part).
Byte: 0 1 2
Data: 0xBc index value
c = MIDI channel (0 - 15)
index = controller number (see the CC list)
value = controller value* (see the CC list)
* Note: internal parameter values are represented in 10 bit format.
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