Mutable Instruments Yarns
Four-channel MIDI interface with sequencing and audio output
12 HP Eurorack module
Yarns is a 4-channel MIDI-to-CV/Gate interface for Eurorack systems, converting MIDI note, velocity, modulation, and clock data into precise analog control voltages and gate signals. It supports monophonic, duophonic, polyphonic, and multitimbral conversion modes, and includes onboard arpeggiators, sequencers, Euclidean pattern generators, and even audio-rate oscillator output, making it a deeply musical bridge between the digital MIDI world and analog modular synthesis.
Features
- 4-channel MIDI-to-CV/Gate conversion
- Monophonic mode with note, velocity, modulation wheel, and auxiliary CC/aftertouch CV outputs
- 2-voice polyphonic or 2-part multitimbral mode
- 4-voice polyphonic or 4-part multitimbral mode
- 4-part trigger conversion with per-part MIDI note selection
- Polychaining mode splitting voices between internal outputs and MIDI Out
- Clock and reset output in monophonic, duophonic, and trigger conversion modes
- Transposition per part
- Split and keyboard range settings
- Multiple voice allocation schemes: voice-stealing, random, cyclic
- Multiple note priority modes: lowest, highest, latest
- Arpeggiator with up, down, up and down, random, chord, and as-played modes
Controls & Jacks (17)
- Start / Stop
- Tap
- CV 3 — MIDI input from controller or sequencer
- MIDI Out — Select and adjust parameter values
- Gate 3 — MIDI output for polychaining or external control
- Gate 2 — Pitch CV output for channel 2 (1V/oct)
- CV 1 — Pitch CV output for channel 1 (1V/oct)
- MIDI In — Select conversion mode or voice allocation
- Gate 1 — Gate/trigger output for channel 1
- CV 2 — Pitch CV output for channel 3 (1V/oct)
- Gate 4 — External clock/sync input
- CV 4 — Clock output synchronized to MIDI
- Rec
- Display — Secondary mode or parameter control
- LED 1 — Pitch CV output for channel 3 (1V/oct)
- LED 4
- Edit — Select and adjust parameter values
How-To Guides
- Save Settings and Sequence to Memory Slot
- Load Settings and Sequence from Memory Slot
- MIDI Drum Machine to Eurorack Triggers
- 4-Voice Polyphonic Chord Voicing
- Euclidean Rhythm Bassline Generator
- SH-101 Style Step Sequencer Melody
- Polychaining Two Yarns for 8-Voice Polyphony
- MIDI Clock to Eurorack Clock and Reset
- Velocity-Controlled Filter Brightness
- Yarns as a MIDI-Controlled Oscillator Voice
- Four-Part Multitimbral MIDI Layering
Explore the interactive Yarns panel on BleepDex — tap any control to learn what it does.
