I’ve developed a free web app: erhythm.org (disclosure: I’m the developer). It’s a visual, interactive rhythm composer inspired by Godfried Toussaint’s The Geometry of Musical Rhythm. The idea is to represent rhythm geometrically: you place beats on a circle, the active steps form shapes, and you can instantly hear the result.
This is not intended as a learning system or replacement for notation, but as a visual presentation tool for rhythm, to explore and illustrate patterns like Euclidean rhythms, polyrhythms, and world rhythms in a more intuitive visual form.
Example (Bembé Afro-Cuban rhythm):
Link in comment.
erhythm.org/composer/r/bembe-afro-cuban?utm_source=banjohangout.org
I’d really appreciate feedback from musicians and educators on whether this kind of visual representation is useful for explaining or presenting rhythmic structures.
Edited by - erhythm on 06/10/2026 08:15:35
Edited by - erhythm on 06/10/2026 08:15:11
I took a cursory look at the site .... it's light years beyond me, but it has me thinking synesthesia / chromesthesia. [And lest anyone think I know something about it ... one of the guys we come across at one of our festivals says he has that trait.]
Very cool - allows my eyes to see what isn’t always immediately apparent to my ears.
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