Kontakt - With KONTAKT 6, you can sound like a snare drum, a symphony orchestra, or anything in between, from a universe of sampled instruments.
Linux Show Player - Sound player designed for stage productions
UVI Falcon - Sampler/synth hybrid instrument
QLab - QLab, Live show control for Mac OS X.
Magix Independence Free - Magix Independence Free is a sampler software that allows you to create any type of sound with its 2Gb library.
Trigger Audio and Video Playback - Audio and video cue player for broadcast and live performance.