Tetrachords

4 track polyphonic CV & MIDI note sequencer

Featuring extensive connectivity, the Tetrachords can act as a bridge between a modular system and the rest of a studio.

The unique, built-for-purpose interface turns a studio into a melodic and harmonic playground. Easily explore anything from unisons and simple melodies to dense note clusters, made-up scales and polytonal mayhem.

Inputs and Outputs:
- 4 Trigger/Gate inputs
- 4 V/oct CV Outputs
- 6 CV Mod inputs
- Midi In & out via 3.5mm jack (type A and B supported)
- Midi in & out via USB C
- i2c connectivity to other i2c modules (currently Disting ex, Just Friends and ER- 301 supported)

Main Features:
- 4 track polyphonic sequencer
- Play with common scales or invent completely new ones using the Tetrachords scale concept
- Write harmonically rich compositions in real time and modulate them endlessly using the hands on interface or CV
- The 4 tracks can be harmonically linked or unlinked.
- The 4 tracks are triggered independantly by the 4 trigger/gate inputs or via midi in.
- The V/oct CV outputs can be freely assigned to any track, allowing up to 4 voice polyphony on a single track.
- Use third party midi to cv modules eg, mutant brains, mmMIDI, umidi to add more CV outputs to tracks.
- Midi outputs allow up to 12 notes of polyphony on each track.
- Midi In & out can be freely assigned per track.
- The 6 Mod inputs can be assigned to modulate virtually any parameter on the module via CV.
- Detailed CV modulation tuning allows precise parameter changes.
- Included SD card for saving and loading song data and user preferences.
- Save up to 8 songs. Each song containing 8 progressions. Each progression containing up to 8 patterns.
- Built in tuner, with the ability to save and recall custom oscillator calibrations.
- Each track can switch between arp, chord, step sequencer and keyboard modes

https://cycleinstruments.com/tetrachords/