SinOsc s => PRCRev r => dac;
.05 => s.gain;
.25 => r.mix;

5 => int nPitches;
int scale[nPitches];
[0, 2, 4, 7, 11] @=> scale;

while (true) {
    66 + Std.rand2(0,2) * 12 + scale [Math.rand2(0,4)] => float f;
    Std.mtof(f) => s.freq;
    120::ms => now;
}