Chase Bliss Gravitas MIDI CCs & NRPNs

MIDI implementation details for the Chase Bliss Gravitas.

Last update: February 10, 2026 • 12 parameters

Contributions welcome! You can email us your edited CSV if you don't want to use GitHub.

Sound control

Parameter CC Range Usage Orientation
Drive 14 [0–127] — 0-based
Volume 15 [0–127] — 0-based
Tone 16 [0–127] — 0-based
Rate 17 [0–127] — 0-based
Depth 18 [0–127] — 0-based
Sway 19 [0–127] — 0-based
Ramp 20 [0–127] — 0-based

Other

Parameter CC Range Usage Orientation
Note division 21 [0–5]
0: Whole notes; 1: Half notes; 2: Quarter note triplets; 3: Quarter notes; 4: Eighth notes; 5: Sixteenth notes
 0-based
MIDI clock ignore 51 [0–127]
0: Ignore MIDI clock messages; 127: Listen for MIDI clock messages
 0-based
Tap switch 93 [0–127]
0-127: Tap tempo
 0-based
Expression 100 [0–127] — 0-based
Bypass 102 [0–127]
0: Bypass pedal; 127: Engage pedal and reset ramping
 0-based

The portions of this library that refer to specific devices may be owned by the devices' respective manufacturers. Everything else is licensed under the Creative Commons Attribution Share Alike 4.0 International license.