Kawai K1: MIDI CC, NRPN and OSC map

The Kawai K1 as named OSC addresses — 101 SysEx commands — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device	Kawai K1
Vendor	Kawai
OSC prefix	/k1
Source	🎛️ Derived from an Electra One community preset
Revision	per Electra preset
Upstream	electra-preset
Driver file	devices/kawai/k1.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/kawai/k1.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /k1/level_s1

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as k1: ask “what can the Kawai K1 do?” and it reads this map with list_routes. See the MCP guide.

SysEx commands (101)

OSC address	Arguments
/k1/level_s1	val: u7
/k1/level_s2	val: u7
/k1/level_s3	val: u7
/k1/level_s4	val: u7
/k1/mode	val: u7
/k1/sources	val: u7
/k1/wave_s1	val: u7
/k1/wave_s2	val: u7
/k1/wave_s3	val: u7
/k1/wave_s4	val: u7
/k1/am_12	val: u7
/k1/am_34	val: u7
/k1/fine_s1	val: u7
/k1/fine_s2	val: u7
/k1/fine_s3	val: u7
/k1/fine_s4	val: u7
/k1/mute_s1	val: u7
/k1/mute_s2	val: u7
/k1/coarse_s1	val: u7
/k1/coarse_s2	val: u7
/k1/coarse_s3	val: u7
/k1/coarse_s4	val: u7
/k1/mute_s3	val: u7
/k1/mute_s4	val: u7
/k1/key_track_s1	val: u7
/k1/key_track_s2	val: u7
/k1/key_track_s3	val: u7
/k1/key_track_s4	val: u7
/k1/fix_s1	val: u7
/k1/fix_s2	val: u7
/k1/fix_s3	val: u7
/k1/fix_s4	val: u7
/k1/program_change	val: u7
/k1/get_patch	val: u7
/k1/delay_s1	val: u7
/k1/delay_s2	val: u7
/k1/delay_s3	val: u7
/k1/delay_s4	val: u7
/k1/volume	val: u7
/k1/envelope_s1	val: u7
/k1/envelope_s2	val: u7
/k1/envelope_s3	val: u7
/k1/envelope_s4	val: u7
/k1/p_b_range	val: u7
/k1/vel_curve_s1	val: u7
/k1/vel_curve_s2	val: u7
/k1/vel_curve_s3	val: u7
/k1/vel_curve_s4	val: u7
/k1/level_mod_s1	val: u7
/k1/level_mod_s2	val: u7
/k1/level_mod_s3	val: u7
/k1/level_mod_s4	val: u7
/k1/time_mod_s1	val: u7
/k1/time_mod_s2	val: u7
/k1/time_mod_s3	val: u7
/k1/time_mod_s4	val: u7
/k1/prs_level_s1	val: u7
/k1/prs_level_s2	val: u7
/k1/prs_level_s3	val: u7
/k1/prs_level_s4	val: u7
/k1/ks_level_s1	val: u7
/k1/ks_level_s2	val: u7
/k1/ks_level_s3	val: u7
/k1/ks_level_s4	val: u7
/k1/ks_curve	val: u7
/k1/at_pitch_depth	val: u7
/k1/ks_time_s1	val: u7
/k1/ks_time_s2	val: u7
/k1/ks_time_s3	val: u7
/k1/ks_time_s4	val: u7
/k1/at_pitch_s1	val: u7
/k1/at_pitch_s2	val: u7
/k1/ks_pitch_s1	val: u7
/k1/ks_pitch_s2	val: u7
/k1/ks_pitch_s3	val: u7
/k1/ks_pitch_s4	val: u7
/k1/at_pitch_s3	val: u7
/k1/at_pitch_s4	val: u7
/k1/lfo_shape	val: u7
/k1/lfo_speed	val: u7
/k1/lfo_depth	val: u7
/k1/time_lfo_delay	val: u7
/k1/pressure_depth	val: u7
/k1/mod_wheel	val: u7
/k1/depth	val: u7
/k1/ks_time	val: u7
/k1/velocity_depth	val: u7
/k1/vib_abend_s1	val: u7
/k1/vib_abend_s2	val: u7
/k1/vib_abend_s3	val: u7
/k1/vib_abend_s4	val: u7
/k1/char1	val: u7
/k1/char2	val: u7
/k1/char3	val: u7
/k1/char4	val: u7
/k1/char5	val: u7
/k1/char6	val: u7
/k1/char7	val: u7
/k1/char8	val: u7
/k1/char9	val: u7
/k1/char10	val: u7

Performance MIDI

Notes, pitch bend and any CC are also available: /k1/note/on <note> <velocity>, /k1/cc/<number> <value>, /k1/pitchbend <0-16383>, /k1/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.