Lexicon LXP-5 Sourcetest MIDI CC chart, NRPN and OSC map¶
The Lexicon LXP-5 Sourcetest MIDI implementation: 23 SysEx commands, each named, for Claude (MCP), SuperCollider or any OSC app.
| Device | Lexicon LXP-5 Sourcetest |
|---|---|
| Vendor | Lexicon |
| OSC prefix | /lxp_5_sourcetest |
| Source | 🎛️ Derived from an Electra One community preset |
| Revision | per Electra preset |
| Upstream | electra-preset |
| Driver file | devices/lexicon/lxp_5_sourcetest.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/lexicon/lxp_5_sourcetest.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 lxp_5_sourcetest: ask “what can the Lexicon LXP-5 Sourcetest do?” and it reads this map with list_routes. See the MCP guide.
SysEx commands (23)¶
| OSC address | Arguments |
|---|---|
/lxp_5_sourcetest/level |
val: u7 |
/lxp_5_sourcetest/balance |
val: u7 |
/lxp_5_sourcetest/algorithm |
val: u7 |
/lxp_5_sourcetest/mode |
val: u7 |
/lxp_5_sourcetest/global_patches |
val: u7 |
/lxp_5_sourcetest/lowcut_filter |
val: u7 |
/lxp_5_sourcetest/highcut_filter |
val: u7 |
/lxp_5_sourcetest/coarse |
val: u7 |
/lxp_5_sourcetest/fine |
val: u7 |
/lxp_5_sourcetest/size |
val: u7 |
/lxp_5_sourcetest/diffusion |
val: u7 |
/lxp_5_sourcetest/decay_time |
val: u7 |
/lxp_5_sourcetest/treble_decay |
val: u7 |
/lxp_5_sourcetest/bass_multiply |
val: u7 |
/lxp_5_sourcetest/base_select |
val: u7 |
/lxp_5_sourcetest/interval |
val: u7 |
/lxp_5_sourcetest/adjust |
val: u7 |
/lxp_5_sourcetest/rate |
val: u7 |
/lxp_5_sourcetest/destination |
val: u7 |
/lxp_5_sourcetest/source |
val: u7 |
/lxp_5_sourcetest/threshold |
val: u7 |
/lxp_5_sourcetest/scale_factor |
val: u7 |
/lxp_5_sourcetest/offset |
val: u7 |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /lxp_5_sourcetest/note/on <note> <velocity>, /lxp_5_sourcetest/cc/<number> <value>, /lxp_5_sourcetest/pitchbend <0-16383>, /lxp_5_sourcetest/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 Lexicon LXP-5 Sourcetest?
Yes: SynthHub's hosted MCP server knows the Lexicon LXP-5 Sourcetest's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.