Gina from Lifehacker has a feature how-to on finding free music online. She suggests couple of places on finding free music, such as Google, Singing Fish, WebJay, del.icio.us, Amazon’s Top Free Music downloads, MP3 blogs. Google’s query on finding files (in this case, using mp3 and wma file extension for music) is the most popular method introduced around blogsphere:

… Use Google operators to find unprotected directories of audio files or files of type .mp3. As suggested by this Google Tutor & Advisor article, a Google search like this:

-inurl:(htm|html|php) intitle:”index of” +”last modified” +”parent directory” +description +size +(wma|mp3) “Kleptones”

Turns up several directory listings of Kleptones MP3’s. Replace “Kleptones” with the artist, genre or keyword of your liking.

Very good summary.

Geek to Live: Find free music on the web – [Lifehacker]