I play one bar of 8th notes on right hand, then the same thing on left hand, and then a bar right-hand lead 16th notes at a moderate tempo. I do the whole thing again starting on opposite hand for each section. Then, I raise several tempo up and do those two sets again. (Recorded by LG Phone)
The recoding is a rhythmic repetition of the kick drum (b) and the snare drum (pf) sounds in beatboxing. Recording was done by a Duke Student who is an amateur beatboxer in his room. Recorded on a Zoom H4N.