Synth Controlling UGens

the UGens listed here can affect a node's state from within the synth, 

they can free or pause nodes, for example.

Done

FreeSelf

PauseSelf

FreeSelfWhenDone

PauseSelfWhenDone

Pause

Free

UGens with a doneAction

EnvGen

Linen

Line

XLine

DetectSilence

Duty

TDuty

See [UGen-doneActions] for more detail on done actions.