Chase Bliss Thermae — MIDI Editor & CC Reference

Control the Chase Bliss Thermae from your browser — MIDI control reference, interactive editor, and AI-generated presets. Free, no install.

Explore the Thermae controls in your browser and connect compatible MIDI hardware to send settings to your pedal. The reference below shows the controls mapped in Nitelite; available functions depend on the pedal and firmware. The default MIDI channel in Nitelite is 2. Browser MIDI control works in Chrome, Edge, Opera, or Brave — no install required.

Knobs

Control	MIDI CC	Description
MIX	CC 14	Clean/delayed signal balance. Controls ramp speed when ramping is engaged.
LPF	CC 15	Resonant low-pass filter. Clockwise = bright, counter-clockwise = mellow.
REGEN	CC 16	Echo regeneration/feedback. Higher = more smeary, tape-saturated blur. Can self-oscillate.
GLIDE	CC 17	Portamento between sequence steps. Min = immediate shifts, higher = long slides.
INT 1	CC 18	Interval 1 / Speed. Pitch shift amount for step 1. Noon = bypass step. With MODULATION dip: modulation speed.
INT 2	CC 19	Interval 2 / Depth. Pitch shift amount for step 2 (relative to step 1). Noon = bypass step. With MODULATION dip: modulation depth.

Alt / Secondary Knob Functions

Control	MIDI CC	Description
HOLD	CC 24	Simulates hold function: 127 = runaway oscillation, 0 = resume regen position
SLOW/TAP	CC 25	Sequence mode: slowdown. Step mode: set tap tempo. 127 = engage, 0 = disengage.

Switches

Switch	MIDI CC	Positions
NOTE DIV	CC 21	1/4 / 1/8D / 1/8
NOTE DIV	CC 22	1/4 / 1/8D / 1/8
NOTE DIV	CC 23	1/4 / 1/8D / 1/8

DIP Switches — RAMP/EXP

Control	MIDI CC	Description
REGEN	CC 61	Enable ramping/expression control for REGEN knob
INT 1	CC 62	Enable ramping/expression control for INT 1 (Speed) knob
INT 2	CC 63	Enable ramping/expression control for INT 2 (Depth) knob
GLIDE	CC 64	Enable ramping/expression control for GLIDE knob
LPF	CC 65	Enable ramping/expression control for LPF knob
BOUNCE	CC 66	Bounce mode: parameters modulate back and forth instead of ramp-and-hold
SWEEP	CC 67	Sweep direction. Top: knob = max of range. Bottom: knob = min of range.
POLARITY	CC 68	Ramp polarity. Forward: normal. Reverse: inverted.

DIP Switches — CUSTOMIZE

Control	MIDI CC	Description
STEP	CC 71	Step Mode - Pauses internal sequencer, advance manually with left footswitch
MODULATION	CC 72	Changes INT 1/2 knobs to Speed/Depth, toggles to waveform shape/randomness controls
MoToByp	CC 73	Momentary-to-bypass: pedal only active while bypass stomp is held down
TRAILS	CC 74	Echoes fade out naturally after bypass instead of cutting off. Switches to buffered bypass.
TAP CTRL	CC 75	R = ramp (tap sets ramp rate), P = parameter (tap sets RPM). Needs Bounce on for continuous modulation.
TAP DIV	CC 76	Tap division bank selection. Enables alternate note divisions for tap tempo.
UNUSED	CC 77	Reserved / unused DIP switch position
UNUSED	CC 78	Reserved / unused DIP switch position

Footswitches

TAP/STEP — CC 93
BYPASS — CC 102

Special MIDI Functions

Tap Tempo — CC 93
Expression — CC 100
MIDI Clock — CC 51. Controls whether the Thermae listens to incoming MIDI Clock (Beat Clock) messages. On = listen for MIDI Clock, Off = ignore MIDI Clock.
Ramp Speed — CC 20. Controls the speed of parameter ramping when ramping is engaged. Lower values = slower ramp, higher values = faster ramp.

Hardware Presets

Thermae has 122 hardware preset slots, recalled using MIDI Program Change. Saving requires an action on the pedal; follow the hardware preset manager instructions.