Easy, automatic creation of GUIs for controlling/monitoring Synths and SynthDefs, e.g. aSynth.autogui.
Original SynthDefAutogui by Andrea Valle, 2010.
ControlSpec GUI by Martin Marier. Many improvements and bug fixes by Miguel Negrao.
Bug fixes for SC 3.11-3.12.1 by Avid Reader, who also made the embedded Stethoscope work again.