SndBuf s0 => dac.chan(0);
SndBuf s1 => dac.chan(1);
SndBuf s2 => dac.chan(2);
SndBuf s3 => dac.chan(3);
"finalsection1a.wav" => s0.read;
"finalsection2a.wav" => s1.read;
"finalsection3a.wav" => s2.read;
"finalsection4a.wav" => s3.read;
2::minute => now;