AutoTune Evo corrects the pitch of a voice or solo instrument without distortion
Auto-Tune EFX 2 is the easiest-to-use tool for real-time pitch correction.
Voxengo Marquis does any form of mixing and mastering.
FabFilter Pro-C is a plug-in which can compress computer music files
PS-1 Performance Synthesizer is a VST instrument plugin for Windows.
