Groovesizer Red

The Groovesizer RED is a DIY 16-step sequencer and granular synth.

It’s based on the original Groovesizer mk1 Arduino project. It features 16 LEDs (one per step), 5 potentiometers, and 5 buttons, MIDI input and ouput on 5-pin DINs, MIDI sync in and out, and audio out (mono) on an 1/8″ jack. There are 32 user locations for saving patterns and patches. Up to 4 patterns can be chained together to create a 4 bar pattern. Note entry can be quantized to one of 12 pre-defined scales. Patterns can be triggered and transposed via MIDI. Notes can also be entered via an attached MIDI keyboard.

SYNTH

- granular synth based on Auduino

- synth settings saved with pattern

- Live Play mode (via MIDI keyboard)

- automatable grain decay 1 (sounds similar to filter cutoff)

SEQUENCER

- note entry for individual steps or groups of up to 4 steps at once

- rests, ties, slides and accents for each step

- pattern length from 1 – 16 steps

- pattern retrigger

- tap tempo

- 6 play modes (forward, reverse, pendulum, random interval,  drunk, random)

- pattern transpose (semitones or octaves)

- adjustable note duration

- swing/shuffle

- MIDI in/out (note, clock sync, trigger)

- MIDI note entry

- MIDI transpose pattern

- send automation via MIDI cc