adc => DelayL delay => dac;
delay => Gain g => delay;

// attenuation
.99 => g.gain;
// max
1::second => delay.max;

// freq
60 => Std.mtof => float freq;
// sample rate
second / samp => float SRATE;
// delay in samples
(SRATE / freq)::samp => delay.delay;

while( true )
{
    1::day => now;
}