Fliqlo Screensaver - A screensaver that displays the time using a flip clock.
Magic Music Visuals - Fully-customizable and highly responsive visuals for live and recorded audio & MIDI.
Padbury Clock Screensaver - Minimal screensaver for Mac
MilkDrop - 3D audio visualization plugin, compatible with WinAmp plugin API
Clock Screen Saver - Clock Screen Saver is a free cool looking screen saver that displays the current time in the way of digital or analog clock faces.
Kauna - Kauna is a music visualizer. Kauna renders any sound reproduction in system.