Roland JU-06A: MIDI CC, NRPN and OSC map¶
The Roland JU-06A as named OSC addresses — 68 CC — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.
| Device | Roland JU-06A |
|---|---|
| Vendor | Roland |
| OSC prefix | /ju_06a |
| Source | 🎛️ Derived from an Electra One community preset |
| Revision | per pencilresearch canonical CSV |
| Upstream | electra-preset |
| Driver file | devices/roland/ju_06a.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/ju_06a.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 ju_06a: ask “what can the Roland JU-06A do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (68)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/ju_06a/dco_range |
12 | 0–127 | continuous | ||
/ju_06a/dco_lfo_depth |
13 | 0–127 | continuous | ||
/ju_06a/dco_pwm |
14 | 0–127 | continuous | ||
/ju_06a/dco_lfo_target |
15 | 0–127 | continuous | ||
/ju_06a/dco_sqr_switch |
16 | 0–127 | continuous | ||
/ju_06a/dco_saw_switch |
17 | 0–127 | continuous | ||
/ju_06a/dco_sub_switch |
28 | 0–127 | continuous | ||
/ju_06a/dco_sub_lvl |
18 | 0–127 | continuous | ||
/ju_06a/dco_nse_lvl |
19 | 0–127 | continuous | ||
/ju_06a/hpf_freq |
20 | 0–127 | continuous | ||
/ju_06a/vcf_env_polarity |
21 | 0–127 | continuous | ||
/ju_06a/vcf_env_depth |
22 | 0–127 | continuous | ||
/ju_06a/vcf_lfo |
23 | 0–127 | continuous | ||
/ju_06a/vcf_keytrack |
24 | 0–127 | continuous | ||
/ju_06a/vca_env |
25 | 0–127 | continuous | ||
/ju_06a/vca_lvl |
26 | 0–127 | continuous | ||
/ju_06a/lfo_wave |
29 | 0–127 | continuous | ||
/ju_06a/lfo_trig |
30 | 0–127 | continuous | ||
/ju_06a/lfo_rate |
3 | 0–127 | continuous | ||
/ju_06a/lfo_delay |
9 | 0–127 | continuous | ||
/ju_06a/env_atk |
73 | 0–127 | continuous | ||
/ju_06a/env_dec |
75 | 0–127 | continuous | ||
/ju_06a/env_sus |
27 | 0–127 | continuous | ||
/ju_06a/env_rel |
72 | 0–127 | continuous | ||
/ju_06a/vcf_frq |
74 | 0–127 | continuous | ||
/ju_06a/vcf_res |
71 | 0–127 | continuous | ||
/ju_06a/dly_time |
82 | 0–127 | continuous | ||
/ju_06a/dly_fdbk |
83 | 0–127 | continuous | ||
/ju_06a/dly_sw |
89 | 0–127 | continuous | ||
/ju_06a/dly_lvl |
91 | 0–127 | continuous | ||
/ju_06a/chorus_type |
93 | 0–127 | continuous | ||
/ju_06a/poly_mono_unison |
86 | 0–127 | continuous | ||
/ju_06a/modwheel |
1 | 0–127 | continuous | ||
/ju_06a/expr_pdl |
11 | 0–127 | continuous | ||
/ju_06a/sustain |
64 | 0–127 | continuous | ||
/ju_06a/portamento |
65 | 0–127 | continuous | ||
/ju_06a/portamento_time |
5 | 0–127 | continuous | ||
/ju_06a/bend_range |
87 | 0–127 | continuous | ||
/ju_06a/clck_sync |
88 | 0–127 | continuous | ||
/ju_06a/lfo_delay_time |
9 | 0–127 | continuous | ||
/ju_06a/shape |
29 | 0–127 | continuous | ||
/ju_06a/voice_mode |
86 | 0–127 | continuous | ||
/ju_06a/range |
12 | 0–127 | continuous | ||
/ju_06a/lfo |
13 | 0–127 | continuous | ||
/ju_06a/pwm |
14 | 0–127 | continuous | ||
/ju_06a/pwm_type |
15 | 0–127 | continuous | ||
/ju_06a/pulse |
16 | 0–127 | continuous | ||
/ju_06a/saw |
17 | 0–127 | continuous | ||
/ju_06a/sub |
28 | 0–127 | continuous | ||
/ju_06a/sub |
18 | 0–127 | continuous | ||
/ju_06a/noise |
19 | 0–127 | continuous | ||
/ju_06a/hpf_frequency |
20 | 0–127 | continuous | ||
/ju_06a/port_time |
5 | 0–127 | continuous | ||
/ju_06a/freq |
74 | 0–127 | continuous | ||
/ju_06a/res |
71 | 0–127 | continuous | ||
/ju_06a/env_polarity |
21 | 0–127 | continuous | ||
/ju_06a/env_mod |
22 | 0–127 | continuous | ||
/ju_06a/lfo_mod |
23 | 0–127 | continuous | ||
/ju_06a/key_follow |
24 | 0–127 | continuous | ||
/ju_06a/gate_env |
25 | 0–127 | continuous | ||
/ju_06a/vca_level |
26 | 0–127 | continuous | ||
/ju_06a/attack |
73 | 0–127 | continuous | ||
/ju_06a/decay |
75 | 0–127 | continuous | ||
/ju_06a/release |
72 | 0–127 | continuous | ||
/ju_06a/chorus_1 |
93 | 0–127 | continuous | ||
/ju_06a/delay_on_off |
91 | 0–127 | continuous | ||
/ju_06a/delay_time |
82 | 0–127 | continuous | ||
/ju_06a/delay_feedback |
83 | 0–127 | continuous |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /ju_06a/note/on <note> <velocity>, /ju_06a/cc/<number> <value>, /ju_06a/pitchbend <0-16383>, /ju_06a/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.