OP: you may want to post this to /r/musictheory on Reddit. I have a feeling it will be appreciated by the music geeks there.
That said, it is fantastic.
Really, really cool! What would be a nice feature, especially for longer rhythms, is highlighting the currently played syllable/phrase
Really cool.. Please highlight what is currently being played, will make it even better.
This is brilliant!!!
Genius!
This is cool! I read your article about musical faders some time ago as well [1]. It's great that you are thinking about what music can look like on computers in this free way.
[1] http://arthurcarabott.com/mui/