Written from devices/dsi/poly_evolver.electra-swk82-v2.fw-unknown.jsonEdit on GitHubJSON

DSI Poly Evolver MIDI CC chart, NRPN and OSC map

The DSI Poly Evolver MIDI implementation: 99 SysEx commands, each named, for Claude (MCP), SuperCollider or any OSC app.

  • sourceElectra One preset
  • real unitnot yet checked

Not checked on a real DSI Poly Evolver yet. Own one? Load a sound or send a control, and tell us whether it worked.

Maker
DSI
Version
per Electra preset
Source
Electra One preset
OSC prefix
/poly_evolver

Use 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/dsi/poly_evolver.electra-swk82-v2.fw-unknown.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /poly_evolver/freq

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as poly_evolver: ask “what can the DSI Poly Evolver do?” and it reads this map with list_routes. See the MCP guide.

MIDI controls

99 controls, each with its number, its range and the name to send

SysEx commands

Command Arguments Name to send
Freq val: u7 /poly_evolver/freq
Fine val: u7 /poly_evolver/fine
Shape val: u7 /poly_evolver/shape
Level val: u7 /poly_evolver/level
Sync val: u7 /poly_evolver/sync
Osc slop val: u7 /poly_evolver/osc_slop
Noise level val: u7 /poly_evolver/noise_level
Hi pass filter val: u7 /poly_evolver/hi_pass_filter
Wave shape val: u7 /poly_evolver/wave_shape
Fm osc 4 3 val: u7 /poly_evolver/fm_osc_4_3
Rm osc 4 3 val: u7 /poly_evolver/rm_osc_4_3
Fm osc 3 4 val: u7 /poly_evolver/fm_osc_3_4
Rm osc 3 4 val: u7 /poly_evolver/rm_osc_3_4
Cutoff val: u7 /poly_evolver/cutoff
Resonnance val: u7 /poly_evolver/resonnance
Env amount val: u7 /poly_evolver/env_amount
Velocity val: u7 /poly_evolver/velocity
Key tracking val: u7 /poly_evolver/key_tracking
Filter slope val: u7 /poly_evolver/filter_slope
Attack val: u7 /poly_evolver/attack
Decay val: u7 /poly_evolver/decay
Sustain val: u7 /poly_evolver/sustain
Release val: u7 /poly_evolver/release
Audio mod val: u7 /poly_evolver/audio_mod
L r split val: u7 /poly_evolver/l_r_split
Frequency val: u7 /poly_evolver/frequency
Grunge val: u7 /poly_evolver/grunge
Vca level val: u7 /poly_evolver/vca_level
Output pan val: u7 /poly_evolver/output_pan
Feedback amt val: u7 /poly_evolver/feedback_amt
Distortion amt val: u7 /poly_evolver/distortion_amt
Amount val: u7 /poly_evolver/amount
Time val: u7 /poly_evolver/time
Destination val: u7 /poly_evolver/destination
To dly input val: u7 /poly_evolver/to_dly_input
To lpf input val: u7 /poly_evolver/to_lpf_input
Mod wheel dest val: u7 /poly_evolver/mod_wheel_dest
Delay val: u7 /poly_evolver/delay
Velocity dest val: u7 /poly_evolver/velocity_dest
Source val: u7 /poly_evolver/source
Pressure dest val: u7 /poly_evolver/pressure_dest
Breath dest val: u7 /poly_evolver/breath_dest
Foot ctrl dest val: u7 /poly_evolver/foot_ctrl_dest
Osc 1 val: u7 /poly_evolver/osc_1
Osc 2 val: u7 /poly_evolver/osc_2
Program level val: u7 /poly_evolver/program_level
Osc 3 val: u7 /poly_evolver/osc_3
Osc 4 val: u7 /poly_evolver/osc_4
Hack val: u7 /poly_evolver/hack
Input level val: u7 /poly_evolver/input_level
Peak dest val: u7 /poly_evolver/peak_dest
Peak amnt val: u7 /poly_evolver/peak_amnt
Input mode val: u7 /poly_evolver/input_mode
Env fllow dest val: u7 /poly_evolver/env_fllow_dest
Env fllw amnt val: u7 /poly_evolver/env_fllw_amnt
Pitch bend rge val: u7 /poly_evolver/pitch_bend_rge
Key off trsp val: u7 /poly_evolver/key_off_trsp
Trigger val: u7 /poly_evolver/trigger
Key priority val: u7 /poly_evolver/key_priority
Transpose val: u7 /poly_evolver/transpose
Velocity curve val: u7 /poly_evolver/velocity_curve
Global tempo val: u7 /poly_evolver/global_tempo
Clock source val: u7 /poly_evolver/clock_source
Master volume val: u7 /poly_evolver/master_volume
Fine tune val: u7 /poly_evolver/fine_tune
Pressure curve val: u7 /poly_evolver/pressure_curve
Clock division val: u7 /poly_evolver/clock_division
Use pgm tempo val: u7 /poly_evolver/use_pgm_tempo
Imput gain val: u7 /poly_evolver/imput_gain
Pedal 1 dest val: u7 /poly_evolver/pedal_1_dest
Dampr polarity val: u7 /poly_evolver/dampr_polarity
Pedal 2 dest val: u7 /poly_evolver/pedal_2_dest
Bank val: u7 /poly_evolver/bank
Number val: u7 /poly_evolver/number
Program change val: u7 /poly_evolver/program_change
Controller val: u7 /poly_evolver/controller
Midi channel val: u7 /poly_evolver/midi_channel
Pressure val: u7 /poly_evolver/pressure
Local control val: u7 /poly_evolver/local_control
Poly chain val: u7 /poly_evolver/poly_chain
1 val: u7 /poly_evolver/1
2 val: u7 /poly_evolver/2
3 val: u7 /poly_evolver/3
4 val: u7 /poly_evolver/4
5 val: u7 /poly_evolver/5
6 val: u7 /poly_evolver/6
7 val: u7 /poly_evolver/7
8 val: u7 /poly_evolver/8
9 val: u7 /poly_evolver/9
10 val: u7 /poly_evolver/10
11 val: u7 /poly_evolver/11
12 val: u7 /poly_evolver/12
Pgm tempo val: u7 /poly_evolver/pgm_tempo
13 val: u7 /poly_evolver/13
14 val: u7 /poly_evolver/14
15 val: u7 /poly_evolver/15
16 val: u7 /poly_evolver/16
Osc3 seq shape val: u7 /poly_evolver/osc3_seq_shape
Osc4 seq shape val: u7 /poly_evolver/osc4_seq_shape

Performance MIDI

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

JSON

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 DSI Poly Evolver?

Yes: SynthHub's hosted MCP server knows the DSI Poly Evolver's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.