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Roland TB-3: MIDI CC, NRPN and OSC map

The Roland TB-3 as named OSC addresses — 26 CC, 1 SysEx commands — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device Roland TB-3
Vendor Roland
OSC prefix /tb_3
Source 🎛️ Derived from an Electra One community preset
Revision per pencilresearch canonical CSV
Upstream electra-preset
Driver file devices/roland/tb_3.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_3.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /tb_3/general/pad_z 63

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as tb_3: ask “what can the Roland TB-3 do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (26)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/tb_3/general/pad_z 1 0–127 continuous General
/tb_3/general/xy_play_pad_y 11 0–127 continuous General
/tb_3/general/env_mod_pad_x 12 0–127 continuous General
/tb_3/general/env_mod_pad_y 13 0–127 continuous General
/tb_3/general/accent 16 0–127 continuous General
/tb_3/general/effect 17 0–127 continuous General
/tb_3/general/scatter_type 68 0–127 continuous General
/tb_3/general/scatter_depth 69 0–127 continuous General
/tb_3/filter/resonance 71 0–127 continuous Filter
/tb_3/filter/cutoff 74 0–127 continuous Filter
/tb_3/general/pattern_slide 102 0–127 continuous General
/tb_3/general/pattern_accent 103 0–127 continuous General
/tb_3/general/tuning 104 0–127 continuous General
/tb_3/scatter_type 68 0–127 continuous
/tb_3/scatter_depth 69 0–127 continuous
/tb_3/pattern_slide 102 0–127 continuous
/tb_3/pattern_accent 103 0–127 continuous
/tb_3/7_tuning_7 104 -64–63 continuous
/tb_3/modwheel_z 1 0–127 continuous
/tb_3/pad_x 12 0–127 continuous
/tb_3/pad_y 13 0–127 continuous
/tb_3/accent 16 0–127 continuous
/tb_3/effect 17 0–127 continuous
/tb_3/all_notes_off 123 0–127 continuous
/tb_3/cutoff_cc 74 0–127 continuous
/tb_3/resonance_cc 71 0–127 continuous

SysEx commands (1)

OSC address Arguments
/tb_3/pattern_length val: u7

Performance MIDI

Notes, pitch bend and any CC are also available: /tb_3/note/on <note> <velocity>, /tb_3/cc/<number> <value>, /tb_3/pitchbend <0-16383>, /tb_3/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.