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Roland JW-50: MIDI CC, NRPN and OSC map

The Roland JW-50 as named OSC addresses — 60 CC, 330 NRPN — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device Roland JW-50
Vendor Roland
OSC prefix /jw_50
Source 🎛️ Derived from an Electra One community preset
Revision per Electra preset
Upstream electra-preset
Driver file devices/roland/jw_50.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/jw_50.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /jw_50/attack 25

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as jw_50: ask “what can the Roland JW-50 do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (390)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/jw_50/attack 1 / 99 -50–50 continuous
/jw_50/decay 1 / 100 -50–50 continuous
/jw_50/release 1 / 102 -50–50 continuous
/jw_50/lfo_rate 1 / 8 -50–50 continuous
/jw_50/lfo_depth 1 / 9 -50–50 continuous
/jw_50/lfo_delay 1 / 10 -50–50 continuous
/jw_50/cutoff 1 / 32 -50–16 continuous
/jw_50/resonance 1 / 33 -50–50 continuous
/jw_50/glide 65 0–127 continuous
/jw_50/glide_time 5 0–127 continuous
/jw_50/mono 126 0–127 continuous
/jw_50/poly 127 0–127 continuous
/jw_50/attack 1 / 99 -50–50 continuous
/jw_50/decay 1 / 100 -50–50 continuous
/jw_50/release 1 / 102 -50–50 continuous
/jw_50/lfo_rate 1 / 8 -50–50 continuous
/jw_50/lfo_depth 1 / 9 -50–50 continuous
/jw_50/lfo_delay 1 / 10 -50–50 continuous
/jw_50/cutoff 1 / 32 -50–16 continuous
/jw_50/resonance 1 / 33 -50–50 continuous
/jw_50/glide 65 0–127 continuous
/jw_50/glide_time 5 0–127 continuous
/jw_50/mono 126 0–127 continuous
/jw_50/poly 127 0–127 continuous
/jw_50/attack 1 / 99 -50–50 continuous
/jw_50/decay 1 / 100 -50–50 continuous
/jw_50/release 1 / 102 -50–50 continuous
/jw_50/lfo_rate 1 / 8 -50–50 continuous
/jw_50/lfo_depth 1 / 9 -50–50 continuous
/jw_50/lfo_delay 1 / 10 -50–50 continuous
/jw_50/cutoff 1 / 32 -50–16 continuous
/jw_50/resonance 1 / 33 -50–50 continuous
/jw_50/glide 65 0–127 continuous
/jw_50/glide_time 5 0–127 continuous
/jw_50/mono 126 0–127 continuous
/jw_50/poly 127 0–127 continuous
/jw_50/attack 1 / 99 -50–50 continuous
/jw_50/decay 1 / 100 -50–50 continuous
/jw_50/release 1 / 102 -50–50 continuous
/jw_50/lfo_rate 1 / 8 -50–50 continuous
/jw_50/lfo_depth 1 / 9 -50–50 continuous
/jw_50/lfo_delay 1 / 10 -50–50 continuous
/jw_50/cutoff 1 / 32 -50–16 continuous
/jw_50/resonance 1 / 33 -50–50 continuous
/jw_50/glide 65 0–127 continuous
/jw_50/glide_time 5 0–127 continuous
/jw_50/mono 126 0–127 continuous
/jw_50/poly 127 0–127 continuous
/jw_50/attack 1 / 99 -50–50 continuous
/jw_50/decay 1 / 100 -50–50 continuous
/jw_50/release 1 / 102 -50–50 continuous
/jw_50/lfo_rate 1 / 8 -50–50 continuous
/jw_50/lfo_depth 1 / 9 -50–50 continuous
/jw_50/lfo_delay 1 / 10 -50–50 continuous
/jw_50/cutoff 1 / 32 -50–16 continuous
/jw_50/resonance 1 / 33 -50–50 continuous
/jw_50/glide 65 0–127 continuous
/jw_50/glide_time 5 0–127 continuous
/jw_50/mono 126 0–127 continuous
/jw_50/poly 127 0–127 continuous
/jw_50/attack 1 / 99 -50–50 continuous
/jw_50/decay 1 / 100 -50–50 continuous
/jw_50/release 1 / 102 -50–50 continuous
/jw_50/lfo_rate 1 / 8 -50–50 continuous
/jw_50/lfo_depth 1 / 9 -50–50 continuous
/jw_50/lfo_delay 1 / 10 -50–50 continuous
/jw_50/cutoff 1 / 32 -50–16 continuous
/jw_50/resonance 1 / 33 -50–50 continuous
/jw_50/glide 65 0–127 continuous
/jw_50/glide_time 5 0–127 continuous
/jw_50/mono 126 0–127 continuous
/jw_50/poly 127 0–127 continuous
/jw_50/attack 1 / 99 -50–50 continuous
/jw_50/decay 1 / 100 -50–50 continuous
/jw_50/release 1 / 102 -50–50 continuous
/jw_50/lfo_rate 1 / 8 -50–50 continuous
/jw_50/lfo_depth 1 / 9 -50–50 continuous
/jw_50/lfo_delay 1 / 10 -50–50 continuous
/jw_50/cutoff 1 / 32 -50–16 continuous
/jw_50/resonance 1 / 33 -50–50 continuous
/jw_50/glide 65 0–127 continuous
/jw_50/glide_time 5 0–127 continuous
/jw_50/mono 126 0–127 continuous
/jw_50/poly 127 0–127 continuous
/jw_50/attack 1 / 99 -50–50 continuous
/jw_50/decay 1 / 100 -50–50 continuous
/jw_50/release 1 / 102 -50–50 continuous
/jw_50/lfo_rate 1 / 8 -50–50 continuous
/jw_50/lfo_depth 1 / 9 -50–50 continuous
/jw_50/lfo_delay 1 / 10 -50–50 continuous
/jw_50/cutoff 1 / 32 -50–16 continuous
/jw_50/resonance 1 / 33 -50–50 continuous
/jw_50/glide 65 0–127 continuous
/jw_50/glide_time 5 0–127 continuous
/jw_50/mono 126 0–127 continuous
/jw_50/poly 127 0–127 continuous
/jw_50/attack 1 / 99 -50–50 continuous
/jw_50/decay 1 / 100 -50–50 continuous
/jw_50/release 1 / 102 -50–50 continuous
/jw_50/lfo_rate 1 / 8 -50–50 continuous
/jw_50/lfo_depth 1 / 9 -50–50 continuous
/jw_50/lfo_delay 1 / 10 -50–50 continuous
/jw_50/cutoff 1 / 32 -50–16 continuous
/jw_50/resonance 1 / 33 -50–50 continuous
/jw_50/glide 65 0–127 continuous
/jw_50/glide_time 5 0–127 continuous
/jw_50/mono 126 0–127 continuous
/jw_50/poly 127 0–127 continuous
/jw_50/attack 1 / 99 -50–50 continuous
/jw_50/decay 1 / 100 -50–50 continuous
/jw_50/release 1 / 102 -50–50 continuous
/jw_50/lfo_rate 1 / 8 -50–50 continuous
/jw_50/lfo_depth 1 / 9 -50–50 continuous
/jw_50/lfo_delay 1 / 10 -50–50 continuous
/jw_50/cutoff 1 / 32 -50–16 continuous
/jw_50/resonance 1 / 33 -50–50 continuous
/jw_50/glide 65 0–127 continuous
/jw_50/glide_time 5 0–127 continuous
/jw_50/mono 126 0–127 continuous
/jw_50/poly 127 0–127 continuous
/jw_50/attack 1 / 99 -50–50 continuous
/jw_50/decay 1 / 100 -50–50 continuous
/jw_50/release 1 / 102 -50–50 continuous
/jw_50/lfo_rate 1 / 8 -50–50 continuous
/jw_50/lfo_depth 1 / 9 -50–50 continuous
/jw_50/lfo_delay 1 / 10 -50–50 continuous
/jw_50/cutoff 1 / 32 -50–16 continuous
/jw_50/resonance 1 / 33 -50–50 continuous
/jw_50/glide 65 0–127 continuous
/jw_50/glide_time 5 0–127 continuous
/jw_50/mono 126 0–127 continuous
/jw_50/poly 127 0–127 continuous
/jw_50/attack 1 / 99 -50–50 continuous
/jw_50/decay 1 / 100 -50–50 continuous
/jw_50/release 1 / 102 -50–50 continuous
/jw_50/lfo_rate 1 / 8 -50–50 continuous
/jw_50/lfo_depth 1 / 9 -50–50 continuous
/jw_50/lfo_delay 1 / 10 -50–50 continuous
/jw_50/cutoff 1 / 32 -50–16 continuous
/jw_50/resonance 1 / 33 -50–50 continuous
/jw_50/glide 65 0–127 continuous
/jw_50/glide_time 5 0–127 continuous
/jw_50/mono 126 0–127 continuous
/jw_50/poly 127 0–127 continuous
/jw_50/attack 1 / 99 -50–50 continuous
/jw_50/decay 1 / 100 -50–50 continuous
/jw_50/release 1 / 102 -50–50 continuous
/jw_50/lfo_rate 1 / 8 -50–50 continuous
/jw_50/lfo_depth 1 / 9 -50–50 continuous
/jw_50/lfo_delay 1 / 10 -50–50 continuous
/jw_50/cutoff 1 / 32 -50–16 continuous
/jw_50/resonance 1 / 33 -50–50 continuous
/jw_50/glide 65 0–127 continuous
/jw_50/glide_time 5 0–127 continuous
/jw_50/mono 126 0–127 continuous
/jw_50/poly 127 0–127 continuous
/jw_50/attack 1 / 99 -50–50 continuous
/jw_50/decay 1 / 100 -50–50 continuous
/jw_50/release 1 / 102 -50–50 continuous
/jw_50/lfo_rate 1 / 8 -50–50 continuous
/jw_50/lfo_depth 1 / 9 -50–50 continuous
/jw_50/lfo_delay 1 / 10 -50–50 continuous
/jw_50/cutoff 1 / 32 -50–16 continuous
/jw_50/resonance 1 / 33 -50–50 continuous
/jw_50/glide 65 0–127 continuous
/jw_50/glide_time 5 0–127 continuous
/jw_50/mono 126 0–127 continuous
/jw_50/poly 127 0–127 continuous
/jw_50/attack 1 / 99 -50–50 continuous
/jw_50/decay 1 / 100 -50–50 continuous
/jw_50/release 1 / 102 -50–50 continuous
/jw_50/lfo_rate 1 / 8 -50–50 continuous
/jw_50/lfo_depth 1 / 9 -50–50 continuous
/jw_50/lfo_delay 1 / 10 -50–50 continuous
/jw_50/cutoff 1 / 32 -50–16 continuous
/jw_50/resonance 1 / 33 -50–50 continuous
/jw_50/glide 65 0–127 continuous
/jw_50/glide_time 5 0–127 continuous
/jw_50/mono 126 0–127 continuous
/jw_50/poly 127 0–127 continuous
/jw_50/pitch 24 / 35 0–127 continuous
/jw_50/level 26 / 35 0–127 continuous
/jw_50/pan 28 / 35 0–127 continuous
/jw_50/reverb 29 / 35 0–127 continuous
/jw_50/chorus 30 / 35 0–127 continuous
/jw_50/pitch 24 / 36 0–127 continuous
/jw_50/level 26 / 36 0–127 continuous
/jw_50/pan 28 / 36 0–127 continuous
/jw_50/reverb 29 / 36 0–127 continuous
/jw_50/chorus 30 / 36 0–127 continuous
/jw_50/pitch 24 / 37 0–127 continuous
/jw_50/level 26 / 37 0–127 continuous
/jw_50/pan 28 / 37 0–127 continuous
/jw_50/reverb 29 / 37 0–127 continuous
/jw_50/chorus 30 / 37 0–127 continuous
/jw_50/pitch 24 / 38 0–127 continuous
/jw_50/level 26 / 38 0–127 continuous
/jw_50/pan 28 / 38 0–127 continuous
/jw_50/reverb 29 / 38 0–127 continuous
/jw_50/chorus 30 / 38 0–127 continuous
/jw_50/pitch 24 / 39 0–127 continuous
/jw_50/level 26 / 39 0–127 continuous
/jw_50/pan 28 / 39 0–127 continuous
/jw_50/reverb 29 / 39 0–127 continuous
/jw_50/chorus 30 / 39 0–127 continuous
/jw_50/pitch 24 / 40 0–127 continuous
/jw_50/level 26 / 40 0–127 continuous
/jw_50/pan 28 / 40 0–127 continuous
/jw_50/reverb 29 / 40 0–127 continuous
/jw_50/chorus 30 / 40 0–127 continuous
/jw_50/pitch 24 / 41 0–127 continuous
/jw_50/level 26 / 41 0–127 continuous
/jw_50/pan 28 / 41 0–127 continuous
/jw_50/reverb 29 / 41 0–127 continuous
/jw_50/chorus 30 / 41 0–127 continuous
/jw_50/pitch 24 / 43 0–127 continuous
/jw_50/level 26 / 43 0–127 continuous
/jw_50/pan 28 / 43 0–127 continuous
/jw_50/reverb 29 / 43 0–127 continuous
/jw_50/chorus 30 / 43 0–127 continuous
/jw_50/pitch 24 / 45 0–127 continuous
/jw_50/level 26 / 45 0–127 continuous
/jw_50/pan 28 / 45 0–127 continuous
/jw_50/reverb 29 / 45 0–127 continuous
/jw_50/chorus 30 / 45 0–127 continuous
/jw_50/pitch 24 / 47 0–127 continuous
/jw_50/level 26 / 47 0–127 continuous
/jw_50/pan 28 / 47 0–127 continuous
/jw_50/reverb 29 / 47 0–127 continuous
/jw_50/chorus 30 / 47 0–127 continuous
/jw_50/pitch 24 / 48 0–127 continuous
/jw_50/level 26 / 48 0–127 continuous
/jw_50/pan 28 / 48 0–127 continuous
/jw_50/reverb 29 / 48 0–127 continuous
/jw_50/chorus 30 / 48 0–127 continuous
/jw_50/pitch 24 / 50 0–127 continuous
/jw_50/level 26 / 50 0–127 continuous
/jw_50/pan 28 / 50 0–127 continuous
/jw_50/reverb 29 / 50 0–127 continuous
/jw_50/chorus 30 / 50 0–127 continuous
/jw_50/pitch 24 / 42 0–127 continuous
/jw_50/level 26 / 42 0–127 continuous
/jw_50/pan 28 / 42 0–127 continuous
/jw_50/reverb 29 / 42 0–127 continuous
/jw_50/chorus 30 / 42 0–127 continuous
/jw_50/pitch 24 / 44 0–127 continuous
/jw_50/level 26 / 44 0–127 continuous
/jw_50/pan 28 / 44 0–127 continuous
/jw_50/reverb 29 / 44 0–127 continuous
/jw_50/chorus 30 / 44 0–127 continuous
/jw_50/pitch 24 / 46 0–127 continuous
/jw_50/level 26 / 46 0–127 continuous
/jw_50/pan 28 / 46 0–127 continuous
/jw_50/reverb 29 / 46 0–127 continuous
/jw_50/chorus 30 / 46 0–127 continuous
/jw_50/pitch 24 / 53 0–127 continuous
/jw_50/level 26 / 53 0–127 continuous
/jw_50/pan 28 / 53 0–127 continuous
/jw_50/reverb 29 / 53 0–127 continuous
/jw_50/chorus 30 / 53 0–127 continuous
/jw_50/pitch 24 / 54 0–127 continuous
/jw_50/level 26 / 54 0–127 continuous
/jw_50/pan 28 / 54 0–127 continuous
/jw_50/reverb 29 / 54 0–127 continuous
/jw_50/chorus 30 / 54 0–127 continuous
/jw_50/pitch 24 / 56 0–127 continuous
/jw_50/level 26 / 56 0–127 continuous
/jw_50/pan 28 / 56 0–127 continuous
/jw_50/reverb 29 / 56 0–127 continuous
/jw_50/chorus 30 / 56 0–127 continuous
/jw_50/pitch 24 / 49 0–127 continuous
/jw_50/level 26 / 49 0–127 continuous
/jw_50/pan 28 / 49 0–127 continuous
/jw_50/reverb 29 / 49 0–127 continuous
/jw_50/chorus 30 / 49 0–127 continuous
/jw_50/pitch 24 / 51 0–127 continuous
/jw_50/level 26 / 51 0–127 continuous
/jw_50/pan 28 / 51 0–127 continuous
/jw_50/reverb 29 / 51 0–127 continuous
/jw_50/chorus 30 / 51 0–127 continuous
/jw_50/pitch 24 / 52 0–127 continuous
/jw_50/level 26 / 52 0–127 continuous
/jw_50/pan 28 / 52 0–127 continuous
/jw_50/reverb 29 / 52 0–127 continuous
/jw_50/chorus 30 / 52 0–127 continuous
/jw_50/pitch 24 / 55 0–127 continuous
/jw_50/level 26 / 55 0–127 continuous
/jw_50/pan 28 / 55 0–127 continuous
/jw_50/reverb 29 / 55 0–127 continuous
/jw_50/chorus 30 / 55 0–127 continuous
/jw_50/pitch 24 / 57 0–127 continuous
/jw_50/level 26 / 57 0–127 continuous
/jw_50/pan 28 / 57 0–127 continuous
/jw_50/reverb 29 / 57 0–127 continuous
/jw_50/chorus 30 / 57 0–127 continuous
/jw_50/pitch 24 / 59 0–127 continuous
/jw_50/level 26 / 59 0–127 continuous
/jw_50/pan 28 / 59 0–127 continuous
/jw_50/reverb 29 / 59 0–127 continuous
/jw_50/chorus 30 / 59 0–127 continuous
/jw_50/pitch 24 / 60 0–127 continuous
/jw_50/level 26 / 60 0–127 continuous
/jw_50/pan 28 / 60 0–127 continuous
/jw_50/reverb 29 / 60 0–127 continuous
/jw_50/chorus 30 / 60 0–127 continuous
/jw_50/pitch 24 / 61 0–127 continuous
/jw_50/level 26 / 61 0–127 continuous
/jw_50/pan 28 / 61 0–127 continuous
/jw_50/reverb 29 / 61 0–127 continuous
/jw_50/chorus 30 / 61 0–127 continuous
/jw_50/pitch 24 / 62 0–127 continuous
/jw_50/level 26 / 62 0–127 continuous
/jw_50/pan 28 / 62 0–127 continuous
/jw_50/reverb 29 / 62 0–127 continuous
/jw_50/chorus 30 / 62 0–127 continuous
/jw_50/pitch 24 / 63 0–127 continuous
/jw_50/level 26 / 63 0–127 continuous
/jw_50/pan 28 / 63 0–127 continuous
/jw_50/reverb 29 / 63 0–127 continuous
/jw_50/chorus 30 / 63 0–127 continuous
/jw_50/pitch 24 / 64 0–127 continuous
/jw_50/level 26 / 64 0–127 continuous
/jw_50/pan 28 / 64 0–127 continuous
/jw_50/reverb 29 / 64 0–127 continuous
/jw_50/chorus 30 / 64 0–127 continuous
/jw_50/pitch 24 / 82 0–127 continuous
/jw_50/level 26 / 82 0–127 continuous
/jw_50/pan 28 / 82 0–127 continuous
/jw_50/reverb 29 / 82 0–127 continuous
/jw_50/chorus 30 / 82 0–127 continuous
/jw_50/pitch 24 / 65 0–127 continuous
/jw_50/level 26 / 65 0–127 continuous
/jw_50/pan 28 / 65 0–127 continuous
/jw_50/reverb 29 / 65 0–127 continuous
/jw_50/chorus 30 / 65 0–127 continuous
/jw_50/pitch 24 / 66 0–127 continuous
/jw_50/level 26 / 66 0–127 continuous
/jw_50/pan 28 / 66 0–127 continuous
/jw_50/reverb 29 / 66 0–127 continuous
/jw_50/chorus 30 / 66 0–127 continuous
/jw_50/pitch 24 / 67 0–127 continuous
/jw_50/level 26 / 67 0–127 continuous
/jw_50/pan 28 / 67 0–127 continuous
/jw_50/reverb 29 / 67 0–127 continuous
/jw_50/chorus 30 / 67 0–127 continuous
/jw_50/pitch 24 / 68 0–127 continuous
/jw_50/level 26 / 68 0–127 continuous
/jw_50/pan 28 / 68 0–127 continuous
/jw_50/reverb 29 / 68 0–127 continuous
/jw_50/chorus 30 / 68 0–127 continuous
/jw_50/pitch 24 / 69 0–127 continuous
/jw_50/level 26 / 69 0–127 continuous
/jw_50/pan 28 / 69 0–127 continuous
/jw_50/reverb 29 / 69 0–127 continuous
/jw_50/chorus 30 / 69 0–127 continuous
/jw_50/pitch 24 / 70 0–127 continuous
/jw_50/level 26 / 70 0–127 continuous
/jw_50/pan 28 / 70 0–127 continuous
/jw_50/reverb 29 / 70 0–127 continuous
/jw_50/chorus 30 / 70 0–127 continuous
/jw_50/pitch 24 / 27 0–127 continuous
/jw_50/level 26 / 27 0–127 continuous
/jw_50/pan 28 / 27 0–127 continuous
/jw_50/reverb 29 / 27 0–127 continuous
/jw_50/chorus 30 / 27 0–127 continuous
/jw_50/pitch 24 / 28 0–127 continuous
/jw_50/level 26 / 28 0–127 continuous
/jw_50/pan 28 / 28 0–127 continuous
/jw_50/reverb 29 / 28 0–127 continuous
/jw_50/chorus 30 / 28 0–127 continuous
/jw_50/pitch 24 / 29 0–127 continuous
/jw_50/level 26 / 29 0–127 continuous
/jw_50/pan 28 / 29 0–127 continuous
/jw_50/reverb 29 / 29 0–127 continuous
/jw_50/chorus 30 / 29 0–127 continuous
/jw_50/pitch 24 / 30 0–127 continuous
/jw_50/level 26 / 30 0–127 continuous
/jw_50/pan 28 / 30 0–127 continuous
/jw_50/reverb 29 / 30 0–127 continuous
/jw_50/chorus 30 / 30 0–127 continuous
/jw_50/pitch 24 / 31 0–127 continuous
/jw_50/level 26 / 31 0–127 continuous
/jw_50/pan 28 / 31 0–127 continuous
/jw_50/reverb 29 / 31 0–127 continuous
/jw_50/chorus 30 / 31 0–127 continuous
/jw_50/pitch 24 / 58 0–127 continuous
/jw_50/level 26 / 58 0–127 continuous
/jw_50/pan 28 / 58 0–127 continuous
/jw_50/reverb 29 / 58 0–127 continuous
/jw_50/chorus 30 / 58 0–127 continuous

Performance MIDI

Notes, pitch bend and any CC are also available: /jw_50/note/on <note> <velocity>, /jw_50/cc/<number> <value>, /jw_50/pitchbend <0-16383>, /jw_50/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.