Other Inharmonic Polyrhythms

Youtube Video

Diminished seventh as Inharmonic Polyrhythm
The diminished seventh is made by stacking minor thirds and in twelve equal tuning all the intervals are 300 cents (three equal tempered semitones).

The equal tempered minor third can be expressed using the fourth root of two. Four of them combine to make the octave.

Who is this page for?

Anyone interested in unusual rhythms or microtonal pitches - and the golden ratio, pi etc - composers, mathematicians, or just for fun.

What are they?

You could call these polytempi or polyrhythms or polymetrics. Anyway what you have is a steady pattern of beats with no whole number of beats in the measure.

The pitches played are in the same relationship as the rhythms.

None of these rhythms ever repeat exactly though some get very close to a repeat. E.g. the pi rhythm almost coincides to within much less than a millisecond after 113 "measures".

Play all these videos one after another

Practise Tips

It's fun to play along with one of these rhythms, just playing your music with one of the beats, while the others go on in the background of your playing. Probably a good exercise to help develop steady sense of rhythm, and independence.

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.