SuperCollider

SynthDef.new("pink-noise", { |vol = 0.3|
	Out.ar(0, PinkNoise.ar(vol))
}).store();

SynthDef.new("market", { |freq = 10|
  Out.ar( 0,
    RLPF.ar(Saw.ar([100, 102], 0.15),
    Lag.kr(LFNoise0.kr( freq, 700, 1600), 0.1),
    0.05)
  )
}).store();

SynthDef(\sine, { |amp = 0.5, freq = 440|
	var data = SinOsc.ar(freq, 0, amp);
	Out.ar(0, data ! 2);
}).store;