Ferox is a free tape saturation modeller VST plugin.
DFX Audio Enhancer - give your digital music files more vibrancy.
CS 1.6 Winamp Utility will show in the chat your current song playing in Winamp
This software uses the ID3 tag of the MP3 files.
It is a beat shifting delay mangler with lots of modulation options.
FluidSynth is a real-time software synthesizer.