
Line 6 GearBox 3.7 – GearBox 
| 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 
3
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16 17 18 19
KB37 default messages for non-GearBox  applications
Controller
Default MIDI/Control Message
| 1 | - Octave up | None (internally shifts note numbers +1 octave; Not  | |
| 2 | - Octave down | None (internally shifts note numbers  | |
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| 3 | - Pitch Wheel | Pitch Wheel (Not  | |
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| 4 | - Mod Wheel | CC 1 (Modulation Wheel) | |
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| 5 | - Program increment | +1 | |
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| 6 | - Program decrement | - 1 | |
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| 7 | - Knob 1 | CC 73 (Attack Time) | |
| 8 | - Knob 2 | CC 75 (Decay Time) | |
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| 9 | - Knob 3 | CC 72 (Release Time) | |
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| 10 | - Knob 4 | CC 91 (Effects Depth) | |
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| 11 | - Rewind | MMC Rewind | |
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| 12 | - Forward | MMC Fast Forward | |
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| 13 | - Stop | MMC Pause | |
| 14 | - Play | MMC Play/Stop | |
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| 15 | - Record | MMC Record/Punch | |
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| 16 | - Button 1 | CC 65 (Portamento) | |
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| 17 | - Button 2 | CC 127 (Poly On) | |
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| 18 | - Button 3 | CC 126 (Mono On) | |
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| 19 | - Button 4 | CC 123 (All Notes Off) | |
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| Expresion Pedal | CC 11 (Expression) | ||
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| Footswitch 1 (Sustain) | CC 64 (Sustain) | ||
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| Footswitch 2 | MMC Record Punch | ||
To 
4•11
