basically you can search index in google with some good skillz.
type this in the search bar:
intitle:"index.of" (mp3|mp4) Artist.or.song.name-html
by changing what is in the ( ) it changes the file type you look for.
Put the artist or song name where it says artist.song by using dots
instead of spaces you will get better results
if you put -html or -java etc it gets rid of spam and other shit you may
not wnat in your search, ie omits html pages.