pulsing bottles (jmcc)

> let { r = do { n <- M.whiteNoise ar
>              ; r0 <- M.rand 4 14
>              ; r1 <- M.rand 0 0.7
>              ; r2 <- M.rand 400 7400
>              ; return (resonz (n * lfPulse kr r0 0 0.25 * r1) r2 0.01) }
>     ; s = do { f <- M.rand 0.1 0.5
>              ; p <- M.rand 0 (pi * 2)
>              ; return (sinOsc kr f p) }
>     ; u = liftM2 (\x y -> pan2 x y 1) r s }
> in audition . out 0 . sum =<< replicateM 6 u