Roland SDE-330 MIDI CC chart, NRPN and OSC map¶
The Roland SDE-330 MIDI implementation: 6 SysEx commands, each named, for Claude (MCP), SuperCollider or any OSC app.
| Device | Roland SDE-330 |
|---|---|
| Vendor | Roland |
| OSC prefix | /sde_330 |
| Source | 🎛️ Derived from an Electra One community preset |
| Revision | per Electra preset |
| Upstream | electra-preset |
| Driver file | devices/roland/sde_330.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/sde_330.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 sde_330: ask “what can the Roland SDE-330 do?” and it reads this map with list_routes. See the MCP guide.
SysEx commands (6)¶
| OSC address | Arguments |
|---|---|
/sde_330/tx_exp_pedal |
val: u7 |
/sde_330/rx_prg_change |
val: u7 |
/sde_330/lcd_contrast |
val: u7 |
/sde_330/bypass_mode |
val: u7 |
/sde_330/omni_mode |
val: u7 |
/sde_330/lock_panel |
val: u7 |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /sde_330/note/on <note> <velocity>, /sde_330/cc/<number> <value>, /sde_330/pitchbend <0-16383>, /sde_330/program_change <n>.
Limitations¶
Imported from an Electra One community preset. The mapping reflects the preset author's editorial choices: parameter naming, ranges, and which params are exposed. Untested on hardware in this repo.
Frequently asked questions¶
Can an AI agent like Claude control the Roland SDE-330?
Yes: SynthHub's hosted MCP server knows the Roland SDE-330's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.