hsc3-0.15: Help/UGen/Envelope/xLine.help.lhs
> Sound.SC3.UGen.Help.viewSC3Help "XLine"
> Sound.SC3.UGen.DB.ugenSummary "XLine"
# SC3 reorders mul and add inputs to precede the doneAction input.
> import Sound.SC3
> let {f = xLine KR 200 17000 10 RemoveSynth
> ;o = sinOsc AR f 0 * 0.1}
> in audition (out 0 o)