Linux Show Player - Sound player designed for stage productions
QLab - QLab, Live show control for Mac OS X.
Cue Player - Cue Player software for theater sound and lighting
Resolume - Resolume is an application for live video performances.
Smode Studio - Realtime compositing and display for live shows, concerts and events.
Trigger Audio and Video Playback - Audio and video cue player for broadcast and live performance.