Music Pattern Generator v2.1 is a web app for making complex polyrhythms. Animated graphics make the patterns easy to create and understand.
This app is a new version of my old Euclidean Pattern Generator. I rewrote it in JavaScript so it now runs in the browser, although it can also be downloaded and installed as a desktop app for Linux, Mac or Windows.
Try the app online at https://www.hisschemoller.com/mpg (Chrome or Brave browsers only), read an introduction and overview here on my site, watch a tutorial video, download a desktop installer or view the source files.
A piece of music I made with rhythms created with the Music Pattern Generator: