// Hello Sine!

SinOsc s => dac;	// Connect a Sine Oscillator to the DAC
440.0 => s.freq;	// set frequency, could also do s.freq(440.0);

while (1)   {
    0.5 :: second => now;	// Wait 2 seconds while sound computes
    s.freq() + 110.0 => s.freq;	// set freq to a different number
    <<< s.freq() >>>;		// print out new frequency
}