Roland JX-03: MIDI CC, NRPN and OSC map¶
The Roland JX-03 as named OSC addresses — 79 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.
| Device | Roland JX-03 |
|---|---|
| Vendor | Roland |
| OSC prefix | /jx_03 |
| Source | 🎛️ Derived from an Electra One community preset |
| Revision | per pencilresearch canonical CSV |
| Upstream | electra-preset |
| Driver file | devices/roland/jx_03.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/roland/jx_03.json --out-port <N> --in-port <M>
Then send OSC to 127.0.0.1:7777, for example:
From Claude or any MCP client, the osc-bridge mcp server exposes this driver as jx_03: ask “what can the Roland JX-03 do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (79)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/jx_03/general/modulation |
1 | 0–127 | continuous | General | |
/jx_03/lfo/rate |
3 | 0–127 | continuous | LFO | |
/jx_03/general/portamento_time |
65 | 0–127 | continuous | General | |
/jx_03/lfo/delay_time |
9 | 0–127 | continuous | LFO | |
/jx_03/general/expression_pedal |
11 | 0–127 | continuous | General | |
/jx_03/lfo/wave_form |
12 | 0–127 | continuous | LFO | |
/jx_03/digitally_controlled_oscillator_1/dco_1_range |
13 | 0–127 | continuous | Digitally controlled oscillator 1 | |
/jx_03/digitally_controlled_oscillator_1/dco_1_wave_form |
14 | 0–127 | continuous | Digitally controlled oscillator 1 | |
/jx_03/digitally_controlled_oscillator_1/dco_1_frequency_modulation_lfo_sw |
15 | 0–127 | continuous | Digitally controlled oscillator 1 | |
/jx_03/digitally_controlled_oscillator_1/dco_1_frequency_modulation_envelope_sw |
16 | 0–127 | continuous | Digitally controlled oscillator 1 | |
/jx_03/digitally_controlled_oscillator_2/dco_2_range |
17 | 0–127 | continuous | Digitally controlled oscillator 2 | |
/jx_03/digitally_controlled_oscillator_2/dco_2_wave_form |
18 | 0–127 | continuous | Digitally controlled oscillator 2 | |
/jx_03/digitally_controlled_oscillator_2/dco_2_tune |
19 | 0–127 | continuous | Digitally controlled oscillator 2 | |
/jx_03/digitally_controlled_oscillator_2/dco_2_tfine_tune |
20 | 0–127 | continuous | Digitally controlled oscillator 2 | |
/jx_03/digitally_controlled_oscillator_2/dco_2_cross_mod_sel |
21 | 0–127 | continuous | Digitally controlled oscillator 2 | |
/jx_03/digitally_controlled_oscillator_2/dco_2_frequency_modulation_lfo_sw |
22 | 0–127 | continuous | Digitally controlled oscillator 2 | |
/jx_03/digitally_controlled_oscillator_2/dco_2_frequency_modulation_envelope_sw |
23 | 0–127 | continuous | Digitally controlled oscillator 2 | |
/jx_03/dco_settings/dco_lfo_depth |
24 | 0–127 | continuous | DCO settings | |
/jx_03/dco_settings/dco_envelope_depth |
25 | 0–127 | continuous | DCO settings | |
/jx_03/dco_settings/dco_envelope_polarity |
26 | 0–127 | continuous | DCO settings | |
/jx_03/vcf/source_mix |
27 | 0–127 | continuous | VCF | |
/jx_03/vcf/lfo_modulation_depth |
28 | 0–127 | continuous | VCF | |
/jx_03/vcf/pitch_follow |
29 | 0–127 | continuous | VCF | |
/jx_03/vcf/hi_pass_filter_cutoff |
30 | 0–127 | continuous | VCF | |
/jx_03/vcf/envelope_modulation_depth |
31 | 0–127 | continuous | VCF | |
/jx_03/vcf/envelope_polarity_sw |
35 | 0–127 | continuous | VCF | |
/jx_03/vca/mode_sw |
46 | 0–127 | continuous | VCA | |
/jx_03/vca/level |
47 | 0–127 | continuous | VCA | |
/jx_03/envelope/attack_time |
73 | 0–127 | continuous | Envelope | |
/jx_03/envelope/decay_time |
75 | 0–127 | continuous | Envelope | |
/jx_03/envelope/sustain_level |
53 | 0–127 | continuous | Envelope | |
/jx_03/envelope/release_time |
72 | 0–127 | continuous | Envelope | |
/jx_03/general/hold |
64 | 0–127 | continuous | General | |
/jx_03/vcf/resonance |
71 | 0–127 | continuous | VCF | |
/jx_03/vcf/cutoff |
74 | 0–127 | continuous | VCF | |
/jx_03/delay/time |
82 | 0–127 | continuous | Delay | |
/jx_03/delay/feedback |
83 | 0–127 | continuous | Delay | |
/jx_03/general/assign_mode |
86 | 0–127 | continuous | General | |
/jx_03/general/bend_range |
87 | 0–127 | continuous | General | |
/jx_03/delay/level |
91 | 0–127 | continuous | Delay | |
/jx_03/general/chorus_sw |
93 | 0–127 | continuous | General | |
/jx_03/range |
13 | 0–127 | continuous | ||
/jx_03/dco_1_waveform |
14 | 0–127 | continuous | ||
/jx_03/freq_mod_lfo_1 |
15 | 0–127 | continuous | ||
/jx_03/freq_mod_env_1 |
16 | 0–127 | continuous | ||
/jx_03/range |
17 | 0–127 | continuous | ||
/jx_03/dco_2_waveform |
18 | 0–127 | continuous | ||
/jx_03/cross_mod |
21 | 0–127 | continuous | ||
/jx_03/tune |
19 | 0–127 | continuous | ||
/jx_03/fine_tune |
20 | 0–127 | continuous | ||
/jx_03/freq_mod_lfo_2 |
22 | 0–127 | continuous | ||
/jx_03/freq_mod_env_2 |
23 | 0–127 | continuous | ||
/jx_03/lfo_mod |
24 | 0–127 | continuous | ||
/jx_03/env_mod |
25 | 0–127 | continuous | ||
/jx_03/env_polarity |
26 | 0–127 | continuous | ||
/jx_03/dco_source_mix |
27 | 0–127 | continuous | ||
/jx_03/cutoff_freq |
74 | 0–127 | continuous | ||
/jx_03/lfo_mod |
28 | 0–127 | continuous | ||
/jx_03/hi_pass_filter |
30 | 0–127 | continuous | ||
/jx_03/resonance |
71 | 0–127 | continuous | ||
/jx_03/pitch_follow |
29 | 0–127 | continuous | ||
/jx_03/envelope_mod |
31 | 0–127 | continuous | ||
/jx_03/env_polarity |
35 | 0–127 | continuous | ||
/jx_03/amplify_source |
46 | 0–127 | continuous | ||
/jx_03/amplify_level |
47 | 0–127 | continuous | ||
/jx_03/lfo_waveform |
12 | 0–127 | continuous | ||
/jx_03/lfo_delay_time |
9 | 0–127 | continuous | ||
/jx_03/lfo_rate |
3 | 0–127 | continuous | ||
/jx_03/delay_on_off |
91 | 0–127 | continuous | ||
/jx_03/delay_time |
82 | 0–127 | continuous | ||
/jx_03/delay_feedback |
83 | 0–127 | continuous | ||
/jx_03/attack |
73 | 0–127 | continuous | ||
/jx_03/decay |
75 | 0–127 | continuous | ||
/jx_03/sustain |
53 | 0–127 | continuous | ||
/jx_03/release |
72 | 0–127 | continuous | ||
/jx_03/chorus_1 |
93 | 0–127 | continuous | ||
/jx_03/voice_mode |
86 | 0–127 | continuous | ||
/jx_03/portamento |
65 | 0–127 | continuous | ||
/jx_03/port_time |
5 | 0–127 | continuous |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /jx_03/note/on <note> <velocity>, /jx_03/cc/<number> <value>, /jx_03/pitchbend <0-16383>, /jx_03/program_change <n>.
Limitations¶
CC/NRPN only. SysEx (preset management, display control, bulk dump/load, vendor-proprietary opcodes) is NOT covered by pencilresearch. To extend this device with SysEx, sniff the vendor editor, add `sysex.header/footer` + `commands` blocks, and use `update_device.md` PR template.