// Nice kickdrum
(
{Pan2.ar{(SinOsc.ar(XLine.kr(500, 40, 0.08), 0, mul: 0.4) +
    SinOsc.ar(XLine.kr(1500, 80, 0.04), 0, mul: 0.4) +
    SinOsc.ar(XLine.kr(4500, 120, 0.02), 0, mul: 0.3)
    )
    * EnvGen.kr(Env.perc(0.05, 0.9, -1.2))}
}.play;
)