Yamaha O2R Owner's Manual page 285

General MIDI Tone Generator
02R controls can be used to remotely control the following parameters of a
General MIDI-compatible tone generator.
02R Controls
Faders MIC 1–16
Rotary encoders TAPE 1–16
[ON] buttons MIC 1–16
There is one page for General MIDI tone generator remote control. The
TAPE 1–16 rotary encoders can be assigned to various MIDI Control
Changes using the CONTROLLER ASSIGN parameter.
When the 02R or General MIDI tone generator is first connected, or turned
on, use the CONNECT function to update the tone generator controls so
that they match those of the 02R. When the CONNECT function is used,
the settings displayed on the 02R are transmitted to the General MIDI tone
generator.
The Part On/Off function controlled using the 02R [ON] buttons is not in
the GM specification. To turn a tone generator part off, the 02R transmits a
Volume message wit h a zero value. To turn a tone generator part on, the
02R transmits a Volume message with a value corresponding to the VOL
fader displayed on the 02R.
If you use this page to control a MIDI sequencer, for example, the Yamaha
QY700, on the MIDI 1/5 page of the 02R disable the Program Change and
Control Change parameters.
MIDI
Parameters on the
GM Tone Generator
Part levels 1–16
Selectable Control Changes for 1–16
Part on/off 1–16
02R User's Guide
175