This is a demonstration of a polymetric (not polyrhythmic) timetable with the right foot under groupings of 3's in the hands.
The hands are playing alternating flam tap taps as 16th notes in 12/8. The foot is then playing groupings of two 16ths, then groupings of 3, then 4, 5,6,7,8,9, then back down 8,7,6,5,4,3,2).
Have fun!
![](https://i.ytimg.com/vi/zOOGFWtPlGw/maxresdefault.jpg)