Roland MC-505 Part A: MIDI CC, NRPN and OSC map¶
The Roland MC-505 Part A as named OSC addresses — 21 CC, 147 SysEx commands — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.
| Device | Roland MC-505 Part A |
|---|---|
| Vendor | Roland |
| OSC prefix | /mc_505_part_a |
| Source | 🎛️ Derived from an Electra One community preset |
| Revision | per Electra preset |
| Upstream | electra-preset |
| Driver file | devices/roland/mc_505_part_a.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/mc_505_part_a.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 mc_505_part_a: ask “what can the Roland MC-505 Part A do?” and it reads this map with list_routes. See the MCP guide.
MIDI CC and NRPN parameters (21)¶
| OSC address | CC | NRPN (MSB/LSB) | Range | Nature | Section |
|---|---|---|---|---|---|
/mc_505_part_a/volume |
7 | 0–127 | continuous | ||
/mc_505_part_a/pan |
10 | -64–63 | continuous | ||
/mc_505_part_a/key_shift |
85 | -48–48 | continuous | ||
/mc_505_part_a/reverb_snd |
91 | 0–127 | continuous | ||
/mc_505_part_a/delay_snd |
94 | 0–127 | continuous | ||
/mc_505_part_a/efx_output |
86 | 0–4 | continuous | ||
/mc_505_part_a/bank_msb |
0 | 0–127 | continuous | ||
/mc_505_part_a/bank_lsb |
32 | 0–127 | continuous | ||
/mc_505_part_a/program |
127 | 0–127 | continuous | ||
/mc_505_part_a/port_time |
5 | 0–127 | continuous | ||
/mc_505_part_a/portamento |
65 | 0–1 | switch | ||
/mc_505_part_a/lfo_rate |
16 | 0–127 | continuous | ||
/mc_505_part_a/lfo_fade |
17 | 0–127 | continuous | ||
/mc_505_part_a/pitch_dep |
18 | -63–63 | continuous | ||
/mc_505_part_a/filter_dep |
19 | -63–63 | continuous | ||
/mc_505_part_a/amp_dep |
80 | -63–63 | continuous | ||
/mc_505_part_a/mod_cc1 |
1 | 0–127 | continuous | ||
/mc_505_part_a/breath_cc2 |
2 | 0–127 | continuous | ||
/mc_505_part_a/expression |
11 | 0–127 | continuous | ||
/mc_505_part_a/soft_pedal |
67 | 0–127 | continuous | ||
/mc_505_part_a/sostenuto |
66 | 0–127 | continuous |
SysEx commands (147)¶
| OSC address | Arguments |
|---|---|
/mc_505_part_a/t1_switch |
val: u7 |
/mc_505_part_a/t1_wave_grp |
val: u7 |
/mc_505_part_a/t1_wave_gain |
val: u7 |
/mc_505_part_a/t1_fxm_sw |
val: u7 |
/mc_505_part_a/t1_fxm_color |
val: u7 |
/mc_505_part_a/t1_fxm_depth |
val: u7 |
/mc_505_part_a/t2_switch |
val: u7 |
/mc_505_part_a/t2_wave_grp |
val: u7 |
/mc_505_part_a/t2_wave_gain |
val: u7 |
/mc_505_part_a/t2_fxm_sw |
val: u7 |
/mc_505_part_a/t2_fxm_color |
val: u7 |
/mc_505_part_a/t2_fxm_depth |
val: u7 |
/mc_505_part_a/t3_switch |
val: u7 |
/mc_505_part_a/t3_wave_grp |
val: u7 |
/mc_505_part_a/t3_wave_gain |
val: u7 |
/mc_505_part_a/t3_fxm_sw |
val: u7 |
/mc_505_part_a/t3_fxm_color |
val: u7 |
/mc_505_part_a/t3_fxm_depth |
val: u7 |
/mc_505_part_a/t4_switch |
val: u7 |
/mc_505_part_a/t4_wave_grp |
val: u7 |
/mc_505_part_a/t4_wave_gain |
val: u7 |
/mc_505_part_a/t4_fxm_sw |
val: u7 |
/mc_505_part_a/t4_fxm_color |
val: u7 |
/mc_505_part_a/t4_fxm_depth |
val: u7 |
/mc_505_part_a/structure_1_2 |
val: u7 |
/mc_505_part_a/booster_1_2 |
val: u7 |
/mc_505_part_a/structure_3_4 |
val: u7 |
/mc_505_part_a/booster_3_4 |
val: u7 |
/mc_505_part_a/t1_coarse |
val: u7 |
/mc_505_part_a/t1_fine |
val: u7 |
/mc_505_part_a/t1_rnd_pit |
val: u7 |
/mc_505_part_a/t1_env_dep |
val: u7 |
/mc_505_part_a/t1_lfo1 |
val: u7 |
/mc_505_part_a/t1_lfo2 |
val: u7 |
/mc_505_part_a/t2_coarse |
val: u7 |
/mc_505_part_a/t2_fine |
val: u7 |
/mc_505_part_a/t2_rnd_pit |
val: u7 |
/mc_505_part_a/t2_env_dep |
val: u7 |
/mc_505_part_a/t2_lfo1 |
val: u7 |
/mc_505_part_a/t2_lfo2 |
val: u7 |
/mc_505_part_a/t3_coarse |
val: u7 |
/mc_505_part_a/t3_fine |
val: u7 |
/mc_505_part_a/t3_rnd_pit |
val: u7 |
/mc_505_part_a/t3_env_dep |
val: u7 |
/mc_505_part_a/t3_lfo1 |
val: u7 |
/mc_505_part_a/t3_lfo2 |
val: u7 |
/mc_505_part_a/t4_coarse |
val: u7 |
/mc_505_part_a/t4_fine |
val: u7 |
/mc_505_part_a/t4_rnd_pit |
val: u7 |
/mc_505_part_a/t4_env_dep |
val: u7 |
/mc_505_part_a/t4_lfo1 |
val: u7 |
/mc_505_part_a/t4_lfo2 |
val: u7 |
/mc_505_part_a/env_t1 |
val: u7 |
/mc_505_part_a/env_t2 |
val: u7 |
/mc_505_part_a/env_t3 |
val: u7 |
/mc_505_part_a/env_t4 |
val: u7 |
/mc_505_part_a/env_l1 |
val: u7 |
/mc_505_part_a/env_l2 |
val: u7 |
/mc_505_part_a/t1_type |
val: u7 |
/mc_505_part_a/t1_cutoff |
val: u7 |
/mc_505_part_a/t1_res |
val: u7 |
/mc_505_part_a/t1_lfo1_dep |
val: u7 |
/mc_505_part_a/t1_lfo2_dep |
val: u7 |
/mc_505_part_a/t2_type |
val: u7 |
/mc_505_part_a/t2_cutoff |
val: u7 |
/mc_505_part_a/t2_res |
val: u7 |
/mc_505_part_a/t2_lfo1_dep |
val: u7 |
/mc_505_part_a/t2_lfo2_dep |
val: u7 |
/mc_505_part_a/t3_type |
val: u7 |
/mc_505_part_a/t3_cutoff |
val: u7 |
/mc_505_part_a/t3_res |
val: u7 |
/mc_505_part_a/t3_lfo1_dep |
val: u7 |
/mc_505_part_a/t3_lfo2_dep |
val: u7 |
/mc_505_part_a/t4_type |
val: u7 |
/mc_505_part_a/t4_cutoff |
val: u7 |
/mc_505_part_a/t4_res |
val: u7 |
/mc_505_part_a/t4_lfo1_dep |
val: u7 |
/mc_505_part_a/t4_lfo2_dep |
val: u7 |
/mc_505_part_a/t1_level |
val: u7 |
/mc_505_part_a/t1_pan |
val: u7 |
/mc_505_part_a/t1_env_t1 |
val: u7 |
/mc_505_part_a/t1_env_t2 |
val: u7 |
/mc_505_part_a/t1_env_t3 |
val: u7 |
/mc_505_part_a/t1_env_t4 |
val: u7 |
/mc_505_part_a/t2_level |
val: u7 |
/mc_505_part_a/t2_pan |
val: u7 |
/mc_505_part_a/t2_env_t1 |
val: u7 |
/mc_505_part_a/t2_env_t2 |
val: u7 |
/mc_505_part_a/t2_env_t3 |
val: u7 |
/mc_505_part_a/t2_env_t4 |
val: u7 |
/mc_505_part_a/t3_level |
val: u7 |
/mc_505_part_a/t3_pan |
val: u7 |
/mc_505_part_a/t3_env_t1 |
val: u7 |
/mc_505_part_a/t3_env_t2 |
val: u7 |
/mc_505_part_a/t3_env_t3 |
val: u7 |
/mc_505_part_a/t3_env_t4 |
val: u7 |
/mc_505_part_a/t4_level |
val: u7 |
/mc_505_part_a/t4_pan |
val: u7 |
/mc_505_part_a/t4_env_t1 |
val: u7 |
/mc_505_part_a/t4_env_t2 |
val: u7 |
/mc_505_part_a/t4_env_t3 |
val: u7 |
/mc_505_part_a/t4_env_t4 |
val: u7 |
/mc_505_part_a/env_l3 |
val: u7 |
/mc_505_part_a/lfo1_dep |
val: u7 |
/mc_505_part_a/lfo2_dep |
val: u7 |
/mc_505_part_a/pitch_lfo1 |
val: u7 |
/mc_505_part_a/pitch_lfo2 |
val: u7 |
/mc_505_part_a/filt_lfo1 |
val: u7 |
/mc_505_part_a/filt_lfo2 |
val: u7 |
/mc_505_part_a/amp_lfo1 |
val: u7 |
/mc_505_part_a/amp_lfo2 |
val: u7 |
/mc_505_part_a/efx_type |
val: u7 |
/mc_505_part_a/efx_p1 |
val: u7 |
/mc_505_part_a/efx_p2 |
val: u7 |
/mc_505_part_a/efx_p3 |
val: u7 |
/mc_505_part_a/efx_p4 |
val: u7 |
/mc_505_part_a/efx_p5 |
val: u7 |
/mc_505_part_a/efx_p6 |
val: u7 |
/mc_505_part_a/efx_p7 |
val: u7 |
/mc_505_part_a/efx_p8 |
val: u7 |
/mc_505_part_a/efx_p9 |
val: u7 |
/mc_505_part_a/efx_p10 |
val: u7 |
/mc_505_part_a/efx_p11 |
val: u7 |
/mc_505_part_a/efx_p12 |
val: u7 |
/mc_505_part_a/efx_delay |
val: u7 |
/mc_505_part_a/efx_reverb |
val: u7 |
/mc_505_part_a/delay_level |
val: u7 |
/mc_505_part_a/delay_type |
val: u7 |
/mc_505_part_a/delay_hfdmp |
val: u7 |
/mc_505_part_a/delay_predly |
val: u7 |
/mc_505_part_a/delay_feedbk |
val: u7 |
/mc_505_part_a/delay_output |
val: u7 |
/mc_505_part_a/reverb_type |
val: u7 |
/mc_505_part_a/reverb_level |
val: u7 |
/mc_505_part_a/reverb_time |
val: u7 |
/mc_505_part_a/rev_hfdmp |
val: u7 |
/mc_505_part_a/key_assign |
val: u7 |
/mc_505_part_a/solo_legato |
val: u7 |
/mc_505_part_a/voice_prior |
val: u7 |
/mc_505_part_a/octave_shift |
val: u7 |
/mc_505_part_a/analog_feel |
val: u7 |
/mc_505_part_a/port_switch |
val: u7 |
/mc_505_part_a/port_mode |
val: u7 |
/mc_505_part_a/port_type |
val: u7 |
/mc_505_part_a/port_start |
val: u7 |
/mc_505_part_a/bend_up |
val: u7 |
/mc_505_part_a/bend_down |
val: u7 |
Performance MIDI¶
Notes, pitch bend and any CC are also available: /mc_505_part_a/note/on <note> <velocity>, /mc_505_part_a/cc/<number> <value>, /mc_505_part_a/pitchbend <0-16383>, /mc_505_part_a/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.