Roland TB-03 MIDI CC chart, NRPN and OSC map¶
The Roland TB-03 MIDI implementation: 10 CC, each named, for Claude (MCP), SuperCollider or any OSC app.
| Device | Roland TB-03 |
|---|---|
| Vendor | Roland |
| OSC prefix | /tb_03 |
| 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/roland/tb_03.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/roland/tb_03.json --out-port <N> --in-port <M>
Then send OSC to 127.0.0.1:7777, for example:
From Claude or any MCP client, the osc-bridge mcp server exposes this driver as tb_03: ask “what can the Roland TB-03 do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (10)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/tb_03/all_ccs/envelope_modulation |
12 | 0–127 | continuous | All CCs | |
/tb_03/all_ccs/accent_level |
16 | 0–127 | continuous | All CCs | |
/tb_03/all_ccs/overdrive |
17 | 0–127 | continuous | All CCs | |
/tb_03/all_ccs/delay_time |
18 | 0–127 | continuous | All CCs | |
/tb_03/all_ccs/delay_feedback |
19 | 0–127 | continuous | All CCs | |
/tb_03/all_ccs/resonance |
71 | 0–127 | continuous | All CCs | |
/tb_03/all_ccs/filter_cutoff_frequency |
74 | 0–127 | continuous | All CCs | |
/tb_03/all_ccs/decay |
75 | 0–127 | continuous | All CCs | |
/tb_03/all_ccs/slide_status |
102 | 0–127 | continuous | All CCs | |
/tb_03/all_ccs/tuning |
104 | 0–127 | continuous | All CCs |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /tb_03/note/on <note> <velocity>, /tb_03/cc/<number> <value>, /tb_03/pitchbend <0-16383>, /tb_03/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.
Frequently asked questions¶
Which MIDI CC controls the filter cutoff on the Roland TB-03?
CC 74 (0–127), named /tb_03/all_ccs/filter_cutoff_frequency in SynthHub's map.
How many parameters of the Roland TB-03 can be controlled over MIDI?
SynthHub's map of the Roland TB-03 lists 10 MIDI CC parameters, each with its number, range and a readable name; the full chart is on this page.
Can an AI agent like Claude control the Roland TB-03?
Yes: SynthHub's hosted MCP server knows the Roland TB-03's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.