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Yamaha DX7 Editor for NT v1 MIDI CC chart, NRPN and OSC map

The Yamaha DX7 Editor for NT v1 MIDI implementation: 55 CC, 36 SysEx commands, each named, for Claude (MCP), SuperCollider or any OSC app.

Device Yamaha DX7 Editor for NT v1
Vendor Yamaha
OSC prefix /dx7_editor_for_nt_v1
Source πŸŽ›οΈ Derived from an Electra One community preset
Revision per Electra preset
Upstream electra-preset
Driver file devices/yamaha/dx7_editor_for_nt_v1.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/yamaha/dx7_editor_for_nt_v1.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /dx7_editor_for_nt_v1/chord_enable 63

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as dx7_editor_for_nt_v1: ask β€œwhat can the Yamaha DX7 Editor for NT v1 do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (55)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/dx7_editor_for_nt_v1/chord_enable 61 0–127 continuous
/dx7_editor_for_nt_v1/key 62 0–127 continuous
/dx7_editor_for_nt_v1/mode 63 0–127 continuous
/dx7_editor_for_nt_v1/scale 64 0–127 continuous
/dx7_editor_for_nt_v1/shape 65 0–127 continuous
/dx7_editor_for_nt_v1/inversion 66 0–127 continuous
/dx7_editor_for_nt_v1/root_deg 67 0–127 continuous
/dx7_editor_for_nt_v1/cantus_primus 68 0–127 continuous
/dx7_editor_for_nt_v1/position 69 0–127 continuous
/dx7_editor_for_nt_v1/break_direct 70 0–127 continuous
/dx7_editor_for_nt_v1/break_time 71 0–127 continuous
/dx7_editor_for_nt_v1/arpeggio 72 0–127 continuous
/dx7_editor_for_nt_v1/octave_range 73 0–127 continuous
/dx7_editor_for_nt_v1/coarse_tune 10 0–127 continuous
/dx7_editor_for_nt_v1/fine_tune 0 / 32 -100–100 continuous
/dx7_editor_for_nt_v1/brightness 11 0–127 continuous
/dx7_editor_for_nt_v1/env_scale 12 0–127 continuous
/dx7_editor_for_nt_v1/gain 7 0–127 continuous
/dx7_editor_for_nt_v1/press_vol 1 / 33 -100–100 continuous
/dx7_editor_for_nt_v1/press_brt 2 / 34 -200–200 continuous
/dx7_editor_for_nt_v1/midi_ch 30 0–127 continuous
/dx7_editor_for_nt_v1/sustain 14 0–127 continuous
/dx7_editor_for_nt_v1/bend_range 15 0–48 continuous
/dx7_editor_for_nt_v1/sustain_mode 13 0–127 continuous
/dx7_editor_for_nt_v1/mute_poly_fm 19 0–127 continuous
/dx7_editor_for_nt_v1/left_out 28 0–64 continuous
/dx7_editor_for_nt_v1/right_out 27 0–64 continuous
/dx7_editor_for_nt_v1/reverb_mix 90 0–127 continuous
/dx7_editor_for_nt_v1/time 91 0–127 continuous
/dx7_editor_for_nt_v1/model 92 0–127 continuous
/dx7_editor_for_nt_v1/size 93 0–127 continuous
/dx7_editor_for_nt_v1/mod_speed 94 1–500 continuous
/dx7_editor_for_nt_v1/mod_depth 95 0–127 continuous
/dx7_editor_for_nt_v1/high_damp 96 0–127 continuous
/dx7_editor_for_nt_v1/early_gain 97 0–127 continuous
/dx7_editor_for_nt_v1/diffuse_gain 98 0–127 continuous
/dx7_editor_for_nt_v1/output_mode 99 0–127 continuous
/dx7_editor_for_nt_v1/bypass_reverb 100 0–127 continuous
/dx7_editor_for_nt_v1/delay_mix 102 0–127 continuous
/dx7_editor_for_nt_v1/model 101 0–127 continuous
/dx7_editor_for_nt_v1/level 103 0–127 continuous
/dx7_editor_for_nt_v1/time 104 0–127 continuous
/dx7_editor_for_nt_v1/feedback 105 0–127 continuous
/dx7_editor_for_nt_v1/initial_pan 106 0–127 continuous
/dx7_editor_for_nt_v1/delay_multiple 107 0–127 continuous
/dx7_editor_for_nt_v1/clock_source 108 0–127 continuous
/dx7_editor_for_nt_v1/midi_divisor 109 0–127 continuous
/dx7_editor_for_nt_v1/midi_numerator 110 0–127 continuous
/dx7_editor_for_nt_v1/output_mode 112 0–127 continuous
/dx7_editor_for_nt_v1/bypass_delay 111 0–127 continuous
/dx7_editor_for_nt_v1/chorus_mode 113 0–127 continuous
/dx7_editor_for_nt_v1/output_mode 114 0–127 continuous
/dx7_editor_for_nt_v1/bypass_chorus 115 0–127 continuous
/dx7_editor_for_nt_v1/bank 20 0–127 continuous
/dx7_editor_for_nt_v1/voice 21 0–127 continuous

SysEx commands (36)

OSC address Arguments
/dx7_editor_for_nt_v1/feedback val: u7
/dx7_editor_for_nt_v1/pitch_eg val: u7
/dx7_editor_for_nt_v1/lfo_key_sync val: u7
/dx7_editor_for_nt_v1/osc_key_sync val: u7
/dx7_editor_for_nt_v1/lfo_speed val: u7
/dx7_editor_for_nt_v1/lfo_delay val: u7
/dx7_editor_for_nt_v1/key_transpose val: u7
/dx7_editor_for_nt_v1/p_mod_depth val: u7
/dx7_editor_for_nt_v1/p_mod_sens val: u7
/dx7_editor_for_nt_v1/a_mod_depth val: u7
/dx7_editor_for_nt_v1/output_level val: u7
/dx7_editor_for_nt_v1/eg_level_rate val: u7
/dx7_editor_for_nt_v1/freq_fine val: u7
/dx7_editor_for_nt_v1/ratio_fixed val: u7
/dx7_editor_for_nt_v1/a_mod_sens val: u7
/dx7_editor_for_nt_v1/detune val: u7
/dx7_editor_for_nt_v1/velocity_sens val: u7
/dx7_editor_for_nt_v1/lfo_waveform val: u7
/dx7_editor_for_nt_v1/char1 val: u7
/dx7_editor_for_nt_v1/char2 val: u7
/dx7_editor_for_nt_v1/char3 val: u7
/dx7_editor_for_nt_v1/char4 val: u7
/dx7_editor_for_nt_v1/char5 val: u7
/dx7_editor_for_nt_v1/char6 val: u7
/dx7_editor_for_nt_v1/char7 val: u7
/dx7_editor_for_nt_v1/char8 val: u7
/dx7_editor_for_nt_v1/char9 val: u7
/dx7_editor_for_nt_v1/algorithm val: u7
/dx7_editor_for_nt_v1/op6_freq_fine val: u7
/dx7_editor_for_nt_v1/l_depth val: u7
/dx7_editor_for_nt_v1/rate_scaling val: u7
/dx7_editor_for_nt_v1/r_depth val: u7
/dx7_editor_for_nt_v1/l_curve val: u7
/dx7_editor_for_nt_v1/break_point val: u7
/dx7_editor_for_nt_v1/r_curve val: u7
/dx7_editor_for_nt_v1/freq_coarse val: u7

Performance MIDI

Notes, pitch bend and any CC are also available: /dx7_editor_for_nt_v1/note/on <note> <velocity>, /dx7_editor_for_nt_v1/cc/<number> <value>, /dx7_editor_for_nt_v1/pitchbend <0-16383>, /dx7_editor_for_nt_v1/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

Which MIDI CC controls the filter cutoff on the Yamaha DX7 Editor for NT v1?

CC 11 (0–127), named /dx7_editor_for_nt_v1/brightness in SynthHub's map.

How many parameters of the Yamaha DX7 Editor for NT v1 can be controlled over MIDI?

SynthHub's map of the Yamaha DX7 Editor for NT v1 lists 55 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 Yamaha DX7 Editor for NT v1?

Yes: SynthHub's hosted MCP server knows the Yamaha DX7 Editor for NT v1's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.