Yes, it is possible to download any song from the MySpace website. Here is a website that currently offers this service:

http://www.myspacemp3.org

Obviously this is copyright infringement and I do not encourage the activity. Why tell you about it? Because bands need to know what’s out there so they can work on the offense. My suggestion it this: Don’t upload an entire song. Break your songs up into 1.5 minute clips and offer them for download. Because, when it comes down it music has a little problem: To get a user to buy your music, you have to get it stuck in his/her head… but, to get it stuck in his/her head, he/she probably needs to own your music.

Solution: Let them own a small portion so they come back for more!