TOTAL_DURATION 4500  // extended to fit all waves cleanly

SINE 0 500 440 1.0 0 3 5 0.05 0.3    // sine with slow vibrato and long decay
TRIANGLE 1000 500 550 0.9 0.5 2 3 0.02 0.25  // triangle with sweep
SQUARE 2000 500 330 0.7 0.25 6 4 0.01 0.2  // square with duty cycle and sweep
NOISE 3000 300 0 0.8 0 0 0 0.02 0.1  // noise burst
DPCM 3900 snare.wav 0.8 0.01 0.1 0.7 0.2  // with volume + ADSR
