Skip to content

Flame Curves: MIDI CC, NRPN and OSC map

The Flame Curves as named OSC addresses — 27 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device Flame Curves
Vendor Flame
OSC prefix /curves
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/flame/curves.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.

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/flame/curves.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /curves/envel_all 63

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

MIDI CC and NRPN parameters (27)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/curves/envel_all 2 0–127 continuous
/curves/fill 1 0–127 continuous
/curves/variation 3 0–127 continuous
/curves/vca_band1 4 0–127 continuous
/curves/vca_band2 8 0–127 continuous
/curves/vca_band3 9 0–127 continuous
/curves/vca_band4 10 0–127 continuous
/curves/vca_band5 11 0–127 continuous
/curves/vca_band6 12 0–127 continuous
/curves/vca_band7 13 0–127 continuous
/curves/vca_band8 14 0–127 continuous
/curves/vca_band9 15 0–127 continuous
/curves/vca_band10 16 0–127 continuous
/curves/vca_band11 17 0–127 continuous
/curves/vca_band12 18 0–127 continuous
/curves/env_band1 19 0–127 continuous
/curves/env_band2 20 0–127 continuous
/curves/env_band3 21 0–127 continuous
/curves/env_band4 22 0–127 continuous
/curves/env_band5 23 0–127 continuous
/curves/env_band6 24 0–127 continuous
/curves/env_band7 25 0–127 continuous
/curves/env_band8 26 0–127 continuous
/curves/env_band9 27 0–127 continuous
/curves/env_band10 28 0–127 continuous
/curves/env_band11 29 0–127 continuous
/curves/env_band12 30 0–127 continuous

Performance MIDI

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