slide = min(1, t / 1024 % 8),
t ? (note += 2 ** (pitch = [
	-2,
	-2 + 5 * slide,
	3 - 5 * slide,
	-2 + 5 * slide,
	3 + 4 * slide,
	7 - 2 * slide,
	5 - 3 * slide,
	2 + slide,
	3 - (3 - (cycle_pitch1 = 5 * (t >> 17 & 1))) * slide,
	cycle_pitch1,
	cycle_pitch1,
	cycle_pitch1 + slide * ((cycle_pitch2 = 2 * cycle_pitch1 - 2) - cycle_pitch1),
	cycle_pitch2,
	cycle_pitch2
][t >> 13 & 15] / 12), isNaN(pitch) ? note = 6e4 : 0) :
(note = 6e4, this.delay = Array(12288 )
.fill(0)),
melody = (note % 64 + note % 63.8 + note % 64.15 + note % 64.35 + note % 63.5) / 3 - 52 + delay.shift(),
delay.push(melody / 3), melody + 128 + (t/4*([19/36,2/5,2/5*(13/12)*1.01,1/2][(t>>17)%4])*0.75|192) + (t/4*([19/36,2/5,2/5*(13/12)*1.02,1/2][(t>>17)%4])*0.75*1.515|224)+32