Cryologic is a soundfont library and a soundfont player.
You could remove the vocal from a stereo track with this software.
String Studio VS-1 is a string modeling synthesizer plug-in.
TAL-Bitcrusher is a common bitcrusher with some useful additions.
It can leave the low frequencies untouched, where distortion is more evident.
Yellow-blue is a Skin Addons for AIMP.