This week's new Humble Weekly Sale (opens in new tab) features a bundle devoted to rhythm games. The funkiest of gamers—by which I mean, anyone who can actually bob their head in time and carry a tune—will appreciate the sick beats on sale in the form of Symphone, Sequence, and Bit Trip Runner. I've now used up all of the music-related slang I know, so we can all move on.
Following the standard Humble model, you can name your price for the basic three-game bundle (though you must pay more than $1 to get Steam keys). For $6 or more, you will also get Audiosurf, Beat Hazard Ultra, and Retro/Grade. Of the six games, four of them come with their own soundtracks. Symphony, Audiosurf, and Beat Hazard Ultra also let you play with levels generated by your own music collection.