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Chase Bliss MOOD MKII MIDI CC chart, NRPN and OSC map

The Chase Bliss MOOD MKII MIDI implementation: 51 CC, each named, for Claude (MCP), SuperCollider or any OSC app.

Device Chase Bliss MOOD MKII
Vendor Chase Bliss
OSC prefix /mood_mkii
Source πŸ“¦ Derived from MIDI Guide (community CC/NRPN data)
Firmware unknown
Revision per pencilresearch canonical CSV
Upstream pencilresearch
Data licence CC-BY-SA-4.0 β€” MIDI Guide (https://midi.guide) by Pencil Research and contributors
Driver file devices/chase-bliss/mood_mkii.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 β€” 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/chase-bliss/mood_mkii.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /mood_mkii/footswitches_aux/micro_looper_bypass 63

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as mood_mkii: ask β€œwhat can the Chase Bliss MOOD MKII do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (51)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/mood_mkii/footswitches_aux/micro_looper_bypass 102 0–127 continuous Footswitches/aux
/mood_mkii/footswitches_aux/wet_channel_bypass 103 0–127 continuous Footswitches/aux
/mood_mkii/footswitches_aux/hidden_menu 104 0–127 continuous Footswitches/aux
/mood_mkii/footswitches_aux/wet_channel_freeze 105 0–127 continuous Footswitches/aux
/mood_mkii/footswitches_aux/micro_looper_freeze 106 0–127 continuous Footswitches/aux
/mood_mkii/footswitches_aux/tap_tempo 107 0–127 continuous Footswitches/aux
/mood_mkii/footswitches_aux/tap_tempo_legacy 93 1–127 continuous Footswitches/aux
/mood_mkii/toggles/wet_channel_mode 21 0–127 continuous Toggles
/mood_mkii/toggles/routing 22 0–127 continuous Toggles
/mood_mkii/toggles/micro_looper_mode 23 0–127 continuous Toggles
/mood_mkii/knobs/time 14 0–127 continuous Knobs
/mood_mkii/knobs/mix 15 0–127 continuous Knobs
/mood_mkii/knobs/length 16 0–127 continuous Knobs
/mood_mkii/knobs/wet_channel_modify 17 0–127 continuous Knobs
/mood_mkii/knobs/clock 18 0–127 continuous Knobs
/mood_mkii/knobs/micro_looper_modify 19 0–127 continuous Knobs
/mood_mkii/knobs/ramp_speed 20 0–127 continuous Knobs
/mood_mkii/other/midi_clock_ignore 51 0–127 continuous Other
/mood_mkii/other/stop_ramping 52 0–127 continuous Other
/mood_mkii/other/wet_channel_clock_division 53 0–7 continuous Other
/mood_mkii/other/micro_looper_channel_clock_division 54 0–7 continuous Other
/mood_mkii/other/true_bypass_mode 55 0–127 continuous Other
/mood_mkii/other/factory_reset 56 0–127 continuous Other
/mood_mkii/other/expression_over_midi 100 0–127 continuous Other
/mood_mkii/other/midi_reset 110 1–127 continuous Other
/mood_mkii/other/preset_save 111 0–122 continuous Other
/mood_mkii/dip_switches_left_bank/time 61 0–127 continuous Dip switches, left bank
/mood_mkii/dip_switches_left_bank/wet_channel_modify 62 0–127 continuous Dip switches, left bank
/mood_mkii/dip_switches_left_bank/clock 63 0–127 continuous Dip switches, left bank
/mood_mkii/dip_switches_left_bank/micro_looper_channel_modify 64 0–127 continuous Dip switches, left bank
/mood_mkii/dip_switches_left_bank/length 65 0–127 continuous Dip switches, left bank
/mood_mkii/dip_switches_left_bank/bounce 66 0–127 continuous Dip switches, left bank
/mood_mkii/dip_switches_left_bank/sweep 67 0–127 continuous Dip switches, left bank
/mood_mkii/dip_switches_left_bank/polarity 68 0–127 continuous Dip switches, left bank
/mood_mkii/dip_switches_right_bank/classic 71 0–127 continuous Dip switches, right bank
/mood_mkii/dip_switches_right_bank/miso 72 0–127 continuous Dip switches, right bank
/mood_mkii/dip_switches_right_bank/spread 73 0–127 continuous Dip switches, right bank
/mood_mkii/dip_switches_right_bank/dry_kill 74 0–127 continuous Dip switches, right bank
/mood_mkii/dip_switches_right_bank/trails 75 0–127 continuous Dip switches, right bank
/mood_mkii/dip_switches_right_bank/latch 76 0–127 continuous Dip switches, right bank
/mood_mkii/dip_switches_right_bank/micro_looper_no_dub 77 0–127 continuous Dip switches, right bank
/mood_mkii/dip_switches_right_bank/smooth 78 0–127 continuous Dip switches, right bank
/mood_mkii/synth_mode/exit_synth_mode 59 2–127 continuous Synth mode
/mood_mkii/synth_mode/output_type 87 0–127 continuous Synth mode
/mood_mkii/synth_mode/attack 80 0–127 continuous Synth mode
/mood_mkii/synth_mode/decay 81 0–127 continuous Synth mode
/mood_mkii/synth_mode/sustain 82 0–127 continuous Synth mode
/mood_mkii/synth_mode/release 83 0–127 continuous Synth mode
/mood_mkii/synth_mode/octave_transpose 57 1–9 continuous Synth mode
/mood_mkii/synth_mode/portamento 84 0–127 continuous Synth mode
/mood_mkii/synth_mode/modulation_wheel 1 0–127 continuous Synth mode

Performance MIDI

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

Frequently asked questions

How many parameters of the Chase Bliss MOOD MKII can be controlled over MIDI?

SynthHub's map of the Chase Bliss MOOD MKII lists 51 MIDI CC parameters, each with its number, range and a readable name; the full chart is on this page.

Can an AI agent like Claude control the Chase Bliss MOOD MKII?

Yes: SynthHub's hosted MCP server knows the Chase Bliss MOOD MKII's MIDI map, and its browser relay lets the agent send it parameter changes or load a sound, each sound change confirmed by you.