Plug - Lightweight OSX player for Hype Machine
HotMusic - HotMusic is the best music service to discover songs from your favourite genres RIGHT AFTER their...
Magic Playlist - Get the playlist of your dreams based on a song
Spotify - Map shows when two people play same song at same time
Playlist Hunt - Playlist Hunt is one of the best applications for Apple users to get the best music through it.
Boom for iOS - A music player for your iPhone with magical 3D sound