Chase Bliss CXM 1978 MIDI CCs & NRPNs

MIDI implementation details for the Chase Bliss CXM 1978.

Last update: February 10, 2026 • 19 parameters

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

Faders

Parameter CC Range Usage Orientation
Bass 14 [0–127] — 0-based
Mids 15 [0–127] — 0-based
Cross 16 [0–127] — 0-based
Treble 17 [0–127] — 0-based
Mix 18 [0–127] — 0-based
Pre-delay 19 [0–127] — 0-based

Arcade buttons

Parameter CC Range Usage Orientation
Jump 22 [1–3]
1: Off; 2: 0; 3: 5
 0-based
Type 23 [1–3]
1: Room; 2: Plate; 3: Hall
 0-based
Diffusion 24 [1–3]
1: Low; 2: Mid; 3: High
 0-based
Tank mod 25 [1–3]
1: Low; 2: Mid; 3: High
 0-based
Clock 26 [1–3]
1: Hifi; 2: Standard; 3: Lofi
 0-based

Performance

Parameter CC Range Usage Orientation
Aux perf switch 1 28 [0–127]
0-127: Trigger
 0-based
Aux perf switch 2 29 [0–127]
0-127: Trigger
 0-based
Aux perf switch 3 30 [0–127]
0-127: Trigger
 0-based
Aux perf switch 4 31 [0–127]
0: Sustain on; 1-127: Sustain off
 0-based

Other

Parameter CC Range Usage Orientation
Preset saving 27 [0–29]
0~29: Preset slot
 0-based
Expression 100 [0–127] — 0-based
EOM unlock 101 [0–127]
0-127: Trigger
 0-based
Bypass 102 [0–127]
0: Bypass; 1-127: Engage
 0-based

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