Probabilistically ratcheting a step into a 2/3/4-hit burst adds unpredictable rolls and stutters

Ratchet-retrigger takes a single step and rapidly retriggers it into a burst of 2, 3, or 4 hits. Applied probabilistically — ratcheting only some steps, only some of the time — it injects unpredictable rolls and stutters into hats and snares, the signature ornament of trap, IDM, and footwork. As a generative tool it adds surprise at the sub-step level while leaving the underlying grid intact, so the groove stays recognisable but never plays the same fill twice.

Examples

// Strudel: sometimes ratchet a hat into a burst s(“hh*8”).sometimesBy(0.2, x => x.ply(3))

Assessment

What does ratchet-retrigger do to a single step, and how does applying it probabilistically add interest to a hat pattern?