hsc3-0.12: Help/UGen/External/fmGrain.help.lhs
> Sound.SC3.UGen.Help.viewSC3Help "FMGrain"
> Sound.SC3.UGen.DB.ugenSummary "FMGrain"
> import Sound.SC3.ID
> let {t = impulse AR 20 0
> ;n = linLin (lfNoise1 'a' KR 1) (-1) 1 1 10
> ;s = envSine 9 0.1
> ;e = envGen KR 1 1 0 1 RemoveSynth s
> ;o = fmGrain t 0.2 440 220 n * e}
> in audition (out 0 o)