VCV Rack - A cross-platform modular synthesizer.
MadMapper - The Mapping Software
Pure Data - Pd (aka Pure Data) is a real-time graphical programming environment for audio, video, and graphical...
Resolume - Resolume is an application for live video performances.
Reaktor - Native Instruments Reaktor is a virtual, modular synthesis platform.
Linux Show Player - Sound player designed for stage productions