Euclidean Rhythms

Euclidean Rhythms is an algorithmic rhythm player for Reason. 

Rhythm inspiration

Instead of coming up with and playing the rhythm yourself, a rhythm pattern is generated for you according to Euclid’s ancient algorithm. By tweaking just a few knobs in real-time, or using automation or CV, you can get almost endless variations and inspiration for your tracks!

Simple yet powerful

Euclidean also offers plenty of precise manual control if you want it. For instance you can mute individual steps or draw their velocities. With Slide and Shuffle you can fine-tune the groove.

Quick-tip-video: https://www.youtube.com/watch?v=Ui9cyjB-r4A

For more tips and tricks, check out this playlist!


  • Three algorithm parameters: Steps, Density and Offset
  • Seven different Rates: 1/4, 1/8, 1/8T, 1/16, 1/16T, 1/32, 1/64
  • Always locks to the song clock with sample-accurate precision
  • Shuffle: 50% – 75%
  • Slide: +/- 120 Ticks (one 32nd note)
  • Global scaling of Note Lengths and Velocities
  • Steps can be muted or forced
  • Velocities can be drawn directly in the display
  • The pattern can be reset to its start position using the Reset button or CV input
  • Keyboard Hold and Retrig modes
  • Input Range controls with MIDI Learn
  • Everything can be automated and Remote controlled
  • Modulation CV inputs for Density, Offset, Note Length and Velocity
  • Rhythmical inspiration in a box
  • Combine with other Players for endless possibilities
  • Always in perfect sync with your song