TriOsc tri => ADSR e => NRev r => HPF f => dac; 0.6 => r.mix;
10000 => f.freq; e.set(100::ms, 95::ms, 0, 0::ms);
while(200::ms => now) { e.keyOn(); Std.mtof(Math.random2f(79,80)) => tri.freq; }