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Chase Bliss Thermae: MIDI CC, NRPN and OSC map

The Chase Bliss Thermae as named OSC addresses — 15 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device Chase Bliss Thermae
Vendor Chase Bliss
OSC prefix /thermae
Source 📦 Derived from MIDI Guide (community CC/NRPN data)
Firmware unknown
Revision per pencilresearch canonical CSV
Upstream pencilresearch
Data licence CC-BY-SA-4.0 — MIDI Guide (https://midi.guide) by Pencil Research and contributors
Driver file devices/chase-bliss/thermae.pencilresearch.fw-unknown.json

Not tested on the device yet

This driver comes from documentation or community data and has not been checked on real hardware. If you own one, a quick test and a pull request promoting it helps everyone — see CONTRIBUTING.

Other variants of this device: thermae.

How do you control it?

Find the MIDI ports, then start the bridge with this driver:

osc-bridge detect        # prints the ready-to-run line for what is plugged in
osc-bridge run --device devices/chase-bliss/thermae.pencilresearch.fw-unknown.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /thermae/knobs/mix 63

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as thermae: ask “what can the Chase Bliss Thermae do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (15)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/thermae/knobs/mix 14 0–127 continuous Knobs
/thermae/knobs/lpf 15 0–127 continuous Knobs
/thermae/knobs/regen 16 0–127 continuous Knobs
/thermae/knobs/glide 17 0–127 continuous Knobs
/thermae/knobs/int_1_speed 18 0–127 continuous Knobs
/thermae/knobs/int_2_depth 19 0–127 continuous Knobs
/thermae/knobs/ramp 20 0–127 continuous Knobs
/thermae/toggles/toggle 23 1–3 continuous Toggles
/thermae/sequence/hold 24 0–127 continuous Sequence
/thermae/sequence/slowdown_mode 25 0–127 continuous Sequence
/thermae/sequence/set_tap_tempo 25 0–127 continuous Sequence
/thermae/other/midi_clock 51 0–127 continuous Other
/thermae/other/tap_switch 93 0–127 continuous Other
/thermae/other/expression 100 0–127 continuous Other
/thermae/other/bypass 102 0–127 continuous Other

Performance MIDI

Notes, pitch bend and any CC are also available: /thermae/note/on <note> <velocity>, /thermae/cc/<number> <value>, /thermae/pitchbend <0-16383>, /thermae/program_change <n>.

Limitations

CC/NRPN only. SysEx (preset management, display control, bulk dump/load, vendor-proprietary opcodes) is NOT covered by pencilresearch. To extend this device with SysEx, sniff the vendor editor, add `sysex.header/footer` + `commands` blocks, and use `update_device.md` PR template.