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Oberheim Matrix-6/6R/1000 MIDI CC chart, NRPN and OSC map

The Oberheim Matrix-6/6R/1000 MIDI implementation: 1 CC, 53 SysEx commands, each named, for Claude (MCP), SuperCollider or any OSC app.

Device Oberheim Matrix-6/6R/1000
Vendor Oberheim
OSC prefix /matrix_6_6r_1000
Source πŸŽ›οΈ Derived from an Electra One community preset
Revision per Electra preset
Upstream electra-preset
Driver file devices/oberheim/matrix_6_6r_1000.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 β€” 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/oberheim/matrix_6_6r_1000.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /matrix_6_6r_1000/detune 63

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as matrix_6_6r_1000: ask β€œwhat can the Oberheim Matrix-6/6R/1000 do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (1)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/matrix_6_6r_1000/detune 94 0–127 continuous

SysEx commands (53)

OSC address Arguments
/matrix_6_6r_1000/waveform val: u7
/matrix_6_6r_1000/key_click val: u7
/matrix_6_6r_1000/lfo1_freq val: u7
/matrix_6_6r_1000/frequency val: u7
/matrix_6_6r_1000/dco_mix val: u7
/matrix_6_6r_1000/wave_shape val: u7
/matrix_6_6r_1000/pulse_width val: u7
/matrix_6_6r_1000/lfo2_pwm val: u7
/matrix_6_6r_1000/expression val: u7
/matrix_6_6r_1000/dco_sync val: u7
/matrix_6_6r_1000/detune val: u7
/matrix_6_6r_1000/portamento val: u7
/matrix_6_6r_1000/vel_rate val: u7
/matrix_6_6r_1000/porta_kb_track val: u7
/matrix_6_6r_1000/legato val: u7
/matrix_6_6r_1000/rate val: u7
/matrix_6_6r_1000/mode val: u7
/matrix_6_6r_1000/waveshape val: u7
/matrix_6_6r_1000/lag val: u7
/matrix_6_6r_1000/sample_source val: u7
/matrix_6_6r_1000/speed val: u7
/matrix_6_6r_1000/ramp1_amp val: u7
/matrix_6_6r_1000/retrig_point val: u7
/matrix_6_6r_1000/trigger_mode val: u7
/matrix_6_6r_1000/at_speed val: u7
/matrix_6_6r_1000/amplitude val: u7
/matrix_6_6r_1000/ramp2_amp val: u7
/matrix_6_6r_1000/kb_speed val: u7
/matrix_6_6r_1000/tp_1 val: u7
/matrix_6_6r_1000/tp_2 val: u7
/matrix_6_6r_1000/tp_3 val: u7
/matrix_6_6r_1000/trigger_type val: u7
/matrix_6_6r_1000/tp_4 val: u7
/matrix_6_6r_1000/tp_5 val: u7
/matrix_6_6r_1000/source val: u7
/matrix_6_6r_1000/delay val: u7
/matrix_6_6r_1000/velocity_amp val: u7
/matrix_6_6r_1000/env_mode val: u7
/matrix_6_6r_1000/lfo_1_trigger val: u7
/matrix_6_6r_1000/cutoff_freq val: u7
/matrix_6_6r_1000/resonance val: u7
/matrix_6_6r_1000/freq_mod_2 val: u7
/matrix_6_6r_1000/vcf_amount val: u7
/matrix_6_6r_1000/env3_fm_amt val: u7
/matrix_6_6r_1000/at_fm_amt val: u7
/matrix_6_6r_1000/env1_cutoff_f val: u7
/matrix_6_6r_1000/at_cutoff_f val: u7
/matrix_6_6r_1000/freq_mod_1 val: u7
/matrix_6_6r_1000/vca_1_level val: u7
/matrix_6_6r_1000/vel_vca_1 val: u7
/matrix_6_6r_1000/env_vca_2 val: u7
/matrix_6_6r_1000/amount val: u7
/matrix_6_6r_1000/destination val: u7

Performance MIDI

Notes, pitch bend and any CC are also available: /matrix_6_6r_1000/note/on <note> <velocity>, /matrix_6_6r_1000/cc/<number> <value>, /matrix_6_6r_1000/pitchbend <0-16383>, /matrix_6_6r_1000/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

How many parameters of the Oberheim Matrix-6/6R/1000 can be controlled over MIDI?

SynthHub's map of the Oberheim Matrix-6/6R/1000 lists 1 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 Oberheim Matrix-6/6R/1000?

Yes: SynthHub's hosted MCP server knows the Oberheim Matrix-6/6R/1000's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.