// patch
SinOsc foo => dac;
SinOsc food => dac;

10 => foo.freq;
20 => food.freq; 
0.25 => foo.gain;
0.1 => food.gain;

.5::second => now;

while (true)
{
    Math.random2f(30,300) => foo.freq;
    .25:: second => now;
    foo.freq()*2 => food.freq;
    .25::second => now;
    Math.random2f(30,300) => foo.freq;
    .25:: second => now;
    Math.random2f(300,500) => food.freq;
    .25::second => now;
    
    600 => foo.freq;
    .5::second => now;
    foo.freq()*Math.random2f(1,2) => food.freq;
    .5::second => now;
}