Pithos - pithos is a daemon which provides an S3-compatible frontend for storing files in a Cassandra cluster.
Spotify - Map shows when two people play same song at same time
Hermes - Pandora Client for OS X
Last.fm - The world's largest online music service. Listen online, find out more about your favourite artists, and get music recommendations, only at Last.fm
pianobar - “pianobar” is a free/open-source, console-based replacement for ...
SoundCloud - Enjoy music & follow favourite artists