SynthDef(\blip, {|out = 0, rel = 0.25, freq = 120.0, amp = 0.6|
    var sig, env;
    env = EnvGen.kr( Env.perc(0.03, rel), doneAction:2) * amp;
    sig = SinOsc.ar(6, 0, 0.3);
    sig = Ringz.ar(sig, {freq * Rand(0.98, 1.02) } ! 20, 0.3);
    sig = sig * 0.5;
    Out.ar(out, Splay.ar(sig) / 20)
}).add;