A friend of mine turned me onto www.deezer.com, which appears to offer a huge catalog of free streaming music. The playback works snappily for me.
So, enjoy it while it lasts. This French site appears to be a bit, shall we say, "illegal," but that doesn't mean you can't listen to a few tunes while the lawyers/governments work out their differences. And it's not like you don't have your own illegal copies of a lot of this music stored locally anyways. You big thief!