well i know how to download free music.
go to
http://dvdvideosoft.com/
this is a freeware that you can download that allows you to get music from youtube. get the free youtube to mp3 converter (http://dvdvideosoft.com/products/dvd/Free-YouTube-to-iPod-Converter.htm) . on the side of the youtube video is a url address you copy and paste it to the converter and it will take the song you choose and put it into a file that you want it to go to.
i use this all the time and love it!! the only tedious thing is that you have to spend time to look for a good recording on youtube. hope that helps!