Euclidean rhythm notation is a first-class idiom in TidalCycles/Strudel, compressing a groove to two integers

In Strudel/Tidal the mini-notation (k,n) inside a sound call generates a Euclidean rhythm with k onsets spread across n steps. The parameters themselves are patterns, so (<3 5>,8) alternates between E(3,8) and E(5,8) every cycle. This makes Euclidean rhythms a go-to live-coding idiom: a single pair of numbers produces a groove the audience hears as complex, and changing one number live produces an immediate, audible shift. The pattern-of-parameters extension means the underlying rhythm morphs in real time without the coder having to specify each hit.

Examples

In Strudel: s("bd(3,8)") — tresillo kick. s("hh(<3 5>,8)") — hats alternate between 3 and 5 hits per 8-step cycle.

Assessment

In the Strudel demo in the podcast, McLean types note("c5").s("folkHarp") with (3,8). Modify the example so the number of hits morphs between 3 and 5 every cycle. Then predict how the rhythm will sound different on even versus odd cycles.