What are they?

This brings together Theremin's Rhythmicon idea of assigning pitches to the individual rhythms in polyrhythms with the lovely pendulum waves

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Use these videos as a resource

You can use any of these videos as a resource for your own website or wikis, or make more of them yourself - see Add videos like these to your own site

Play these rhythms and animations at any tempo with Bounce Metronome

You can use Bounce Metronome Pro to practise these and many more rhythms at any tempo, including changing tempo. See Harmonic Polyrhythms in the Features list.