musicForProgramming(); - Mixes intended for listening while programming
Concertmaster - Classical music front-end for Spotify
SoundNode - SoundCloud desktop app (OS X, Windows, Linux)
Music-Map - The Music-Map is the Tourist Map of Music, part of Gnod, the Global Network of Discovery.
cmd.fm - Command-line radio for geeks
Poly-graph Hip Hop - See what hip hop's billboard top 10 sounded like