I've been talking to Mathias for some weeks now, and I think his project is solid enough for me to show it to you, and for you to give it a try. It's pretty impressive, and very useful as an alternative way of finding and playing Magnatune's music.
You can try his Magnatune player at this URL:
There is a "take a tour" link which shows you the various features, including a nicely done drag-and-drop playlist feature. I do recommend it.
If you're a member, be sure to click the "[ ] Member" box toward the top and give the player your name and password. You can then listen advertising-free.
There is a collapsing genre-browser on the left side of the page, which shows you artist info (and their albums) when you click on an artist, and then more info about the album when you click on an album. You can play albums directly, or add them to a playing queue.
Here are some screen pictures from Mathias' player: