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Yamaha TX7 V2.1: MIDI CC, NRPN and OSC map

The Yamaha TX7 V2.1 as named OSC addresses — 7 CC, 56 SysEx commands — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device Yamaha TX7 V2.1
Vendor Yamaha
OSC prefix /tx7_v2_1
Source 🎛️ Derived from an Electra One community preset
Revision per Electra preset
Upstream electra-preset
Driver file devices/yamaha/tx7_v2_1.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/yamaha/tx7_v2_1.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /tx7_v2_1/volume 63

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as tx7_v2_1: ask “what can the Yamaha TX7 V2.1 do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (7)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/tx7_v2_1/volume 7 0–127 continuous
/tx7_v2_1/mod_wheel 1 0–127 continuous
/tx7_v2_1/breath 2 0–127 continuous
/tx7_v2_1/foot 4 0–127 continuous
/tx7_v2_1/porta_time 5 0–127 continuous
/tx7_v2_1/hold 64 0–127 continuous
/tx7_v2_1/porta 65 0–127 continuous

SysEx commands (56)

OSC address Arguments
/tx7_v2_1/output_level val: u7
/tx7_v2_1/operator_1 val: u7
/tx7_v2_1/operator_2 val: u7
/tx7_v2_1/operator_3 val: u7
/tx7_v2_1/operator_4 val: u7
/tx7_v2_1/operator_5 val: u7
/tx7_v2_1/operator_6 val: u7
/tx7_v2_1/freq_coarse val: u7
/tx7_v2_1/fq_multiplier val: u7
/tx7_v2_1/envelope val: u7
/tx7_v2_1/detune val: u7
/tx7_v2_1/key_vel_sen val: u7
/tx7_v2_1/key_vel_sens val: u7
/tx7_v2_1/amp_mod_sens val: u7
/tx7_v2_1/fixed_freq val: u7
/tx7_v2_1/cmb_ind val: u7
/tx7_v2_1/key_left_curve val: u7
/tx7_v2_1/key_right_curve val: u7
/tx7_v2_1/key_left_depth val: u7
/tx7_v2_1/key_right_depth val: u7
/tx7_v2_1/break_point val: u7
/tx7_v2_1/kyb_rate_scale val: u7
/tx7_v2_1/waveform val: u7
/tx7_v2_1/speed val: u7
/tx7_v2_1/delay val: u7
/tx7_v2_1/pitch_mod_depth val: u7
/tx7_v2_1/amp_mod_depth val: u7
/tx7_v2_1/sync val: u7
/tx7_v2_1/range val: u7
/tx7_v2_1/step val: u7
/tx7_v2_1/mode val: u7
/tx7_v2_1/glissando val: u7
/tx7_v2_1/time val: u7
/tx7_v2_1/pitch val: u7
/tx7_v2_1/amplitude val: u7
/tx7_v2_1/eg_bias val: u7
/tx7_v2_1/play_mode val: u7
/tx7_v2_1/attenuation val: u7
/tx7_v2_1/key_low val: u7
/tx7_v2_1/key_high val: u7
/tx7_v2_1/algorithm val: u7
/tx7_v2_1/op_feedback val: u7
/tx7_v2_1/osc_key_sync val: u7
/tx7_v2_1/transpose val: u7
/tx7_v2_1/pitch_eg val: u7
/tx7_v2_1/mod_sensitivity val: u7
/tx7_v2_1/char1 val: u7
/tx7_v2_1/char2 val: u7
/tx7_v2_1/char3 val: u7
/tx7_v2_1/char4 val: u7
/tx7_v2_1/char5 val: u7
/tx7_v2_1/char6 val: u7
/tx7_v2_1/char7 val: u7
/tx7_v2_1/char8 val: u7
/tx7_v2_1/char9 val: u7
/tx7_v2_1/char10 val: u7

Performance MIDI

Notes, pitch bend and any CC are also available: /tx7_v2_1/note/on <note> <velocity>, /tx7_v2_1/cc/<number> <value>, /tx7_v2_1/pitchbend <0-16383>, /tx7_v2_1/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.