Here is a little find that might please you music and graphics lovers. Musicovery is a web site that offers a selection of music classified by moods and styles. It works like a web radio and lets you see the next few songs it is going to play so that you can jump forward directly to a part of the selection you like better. Check it out, it is really easy to use and fun to see move around.
The selection of music styles include some good classic, jazz and world music references which is not such a common feature on internet fancy platforms. Streaming quality is perfect in lo-fi and also available in hi-fi via a payable option. Unfortunately though, there is no volume control.
Impossible to see this site and not think about Liveplasma a very similar graphic interface focused on referencing both music and movies. Also the great Pandora (featured in a previous post), fully customizable and somehow more detailed in terms of finetuning your own play list moods.