Kontakt - With KONTAKT 6, you can sound like a snare drum, a symphony orchestra, or anything in between, from a universe of sampled instruments.
QLab - QLab, Live show control for Mac OS X.
UVI Falcon - Sampler/synth hybrid instrument
Cue Player - Cue Player software for theater sound and lighting
Pianoteq - Pianoteq is a virtual piano that runs on your computer.
MadMapper - The Mapping Software