def blk.pre2
import emerging-ezaudio@0.4.0.0/src/mp3_syn.bend as Mp3Synimport Base
1081# second preamble write: band 16 at the next time
1082def blk.pre2(got: Lg, +nch: U32, +zlin: U32, +tm: U32) -> Lg:
1083 match got:
1084 case Lg{lin, gr}:
1085 blk.w4(lin, gr, nch, u.add(zlin, 124), 16, u.add(tm, 1))