MilkDrop - 3D audio visualization plugin, compatible with WinAmp plugin API
DaVinci Resolve - Revolutionary new tools for editing, color correction and professional audio post production, all in a single application!
projectM - projectM is an LGPL'ed reimplementation of Milkdrop under OpenGL.
iMovie - Turn your videos into movie magic.
Magic Music Visuals - Fully-customizable and highly responsive visuals for live and recorded audio & MIDI.
Final Cut Pro - Professional, non-linear video editing software created by Apple Inc.