The Free Music Archive

The Free Music Archive is an interactive library of high-quality, legal audio downloads. The Free Music Archive is directed by WFMU, the most renowned freeform radio station in America. Radio has always offered the public free access to new music. The Free Music Archive is a continuation of that purpose, designed for the age of the internet.
The Free Music Archive offers free downloads under Creative Commons and other licenses.

And here is a sample music from Yahoo! Media Player

African Echoes by KeFerrante and Teicher

Expo in Sound by T. Swift & The Electric Bag

Hee Haw Hell by Dash Rip Rock

Expresso Da Escravidao by Ratos De Porao

Yahoo! Media Player

A REVOLUTIONARY AND EASY TO USE MUSIC PLAYER THAT
PLAYS AUDIO ON YOUR WEBSITE.

-Adds audio to your site with one line of HTML
-Uses simple, easy-to-hack HTML instead of complicated proprietary markup, ushering in the REAL Media Web
-Magical floating design never gets lost, is available when you need it, gets out of your way when you don't need it
-Automatically finds all audio links on your page, turning your page into a playlist
-Plays all your blog entries with a single button click
-Allows you to put the play buttons where they belong: IN CONTEXT
-Keeps the user in the page rather than sending them away to a media player
-Picks up your images and adds them as cover art
-Requires no download, install or maintenance
Coolllll for music lovers!!!!!!

Instructions on how to add the Yahoo! Media Player on the page in Blogger