free multitracks to practice mixing with

ToneControl

these look good 

http://www.cambridge-mt.com/ms-mtk.htm#Acoustic

notanon

Thanks for posting that Tone

joeyowen

Nice find, I didn't expect there to be that many!

ToneControl

there are the "famous song" multitracks knocking around the www too, but I'd assume there were issues with copyright for those

mike257

There's a few bands have released multitracks and encouraged people to produce remixes etc. Nine Inch Nails were quite an early proponent of this, there's a fair few songs of theirs that you can pick up the stems for legitimately.

andy_k

Tone, absolute goldmine there, thanks

PolarityMan

Anything released on guitar hero often has separated stems as well, its not full clean multitracks but you get guitar, bass, drums, vocals separated out usually.