def dc.rows
import emerging-ezaudio@0.4.0.0/src/mp3_syn.bend as Mp3Synimport Base
783# butterfly the gathered rows, then scatter them back into the spectrum
784def dc.rows(got: Dr) -> Dr:
785 match got:
786 case Dr{acc, xs}:
787 Dr{acc, dc.fly(4n, xs, 0)}