Write a page of polyrhythmic score. Start by inventing a particularly active rhythmic pattern, for any instrument, or any thinly harmonized unit of similar timbre. Combine this with
other thinly harmonized or single-line rhythmic patterns which will contribute variety and interest but which will merge naturally into the rhythmic unity of the basic "beat."
The concentrated rhythmic focus of the polyrhythmic texture can cause it to become monotonous after a short time, unless there is some element of variety. There may have to be some vestige of melody, thematic interest or phrase continuity, but these should be kept at a minimum, so that the over-all impression of exciting motor action will dominate the musical effect.
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