B Mode Messages - Alesis GT Reference Manual

6 Data Slider (0-127)
7 Main Volume (0-127)
8 Balance (0-127)
10 Pan (0-127)
11 Expression (0-127)
16 General Purpose #1 (0-127)
17 General Purpose #2 (0-127)
18 General Purpose #3 (0-127)
19 General Purpose #4 (0-127)
32-63 Least Significant Bits, Controllers 0-31 (0-127)
64 Sustain Pedal (0 or 127)
65 Portamento On/Off (0 or 127)
66 Sustenuto Pedal (0 or 127)
67 Soft Pedal (0 or 127)
69 Hold 2 (0 or 127)
80 General Purpose #5 (0 or 127)
81 General Purpose #6 (0 or 127)
82 General Purpose #7 (0 or 127)
83 General Purpose #8 (0 or 127)
92 Tremolo Depth (0-127)
93 Chorus Depth (0-127)
94 Celeste Depth (0-127)
95 Phase Depth (0-127)
96 Data Increment (0 or 127)
97 Data Decrement (0 or 127)
98 Non-Registered Parameter MSB (0-127)
99 Non-Registered Parameter LSB (0-127)
100 Registered Parameter MSB (0-127)
101 Registered Parameter LSB (0-127)
121 Reset All Controllers (0)
122 Local Control On/Off (0 or 127)
123 All Notes Off (0)
124 Omni Off (0)
125 Omni On (0)
126 Mono On (0-16; 0=Omni Off)
127 Poly On (0)

8.4B Mode Messages

There are two messages that determine the MIDI mode (i.e., how the
QuadraVerb GT will receive MIDI data). The "omni" message
determines how many channels will be recognized. Omni On means
that data from all channels will be received; Omni Off limits the number
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