Skip to content

Eventide 109 Long Digiplex: MIDI CC, NRPN and OSC map

The Eventide 109 Long Digiplex as named OSC addresses — 10 NRPN — ready to use from Claude (MCP), SuperCollider, Sonic Pi, TouchDesigner or any OSC app via osc-bridge.

Device Eventide 109 Long Digiplex
Vendor Eventide
OSC prefix /109_long_digiplex
Source 🎛️ Derived from an Electra One community preset
Revision per Electra preset
Upstream electra-preset
Driver file devices/eventide/109_long_digiplex.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/eventide/109_long_digiplex.json --out-port <N> --in-port <M>

Then send OSC to 127.0.0.1:7777, for example:

osc-bridge osc-send /109_long_digiplex/repeat_toggle 63

From Claude or any MCP client, the osc-bridge mcp server exposes this driver as 109_long_digiplex: ask “what can the Eventide 109 Long Digiplex do?” and it reads this map with list_routes. See the MCP guide.

MIDI CC and NRPN parameters (10)

OSC address CC NRPN (MSB/LSB) Range Nature Section
/109_long_digiplex/repeat_toggle 0 / 7 0–127 continuous
/109_long_digiplex/glide_speed 0 / 4 0–100 continuous
/109_long_digiplex/delay_ms 0 / 2 0–1400 continuous
/109_long_digiplex/feedback 0 / 3 -100–100 continuous
/109_long_digiplex/dry_wet/mix 0 / 0 0–100 continuous DRY/WET
/109_long_digiplex/glide_enable 0 / 5 0–127 continuous
/109_long_digiplex/left_in 0 / 47 -48–48 continuous
/109_long_digiplex/left_out 0 / 49 -48–48 continuous
/109_long_digiplex/right_out 0 / 50 -48–48 continuous
/109_long_digiplex/bank 64 / 5 0–127 continuous

Performance MIDI

Notes, pitch bend and any CC are also available: /109_long_digiplex/note/on <note> <velocity>, /109_long_digiplex/cc/<number> <value>, /109_long_digiplex/pitchbend <0-16383>, /109_long_digiplex/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.