def step.pad
import emerging-ezaudio@0.4.0.0/src/wav.bend as Wavimport Base
285def step.pad(st: St) -> St:
286 match st:
287 case St{_phase, _left, tag, sz, seen, kind, ch, rate, _acc, frames}:
288 st.set(0, 4, tag, sz, seen, kind, ch, rate, [], frames)