Great stuff! I've really been enjoying this--the interface is clean and it's a great experience. If you write up more about how you find the songs or the tech under the hood, I'd enjoy reading more.

Also, I'd love to see buy/download/more info links. It would be a lot of work to canonicalize band/song names, but might provide some good ways to monetize if you wanted to make this a bigger project.

Way to go!