Plug - Lightweight OSX player for Hype Machine
Playlist Machinery - Tools that help you create & organize your Spotify playlists
Magic Playlist - Get the playlist of your dreams based on a song
Vinyls - Vinyls is a music player that lets you listen to your music without any complicated setup.
SonicRoad - Discover great music faster than ever before
Poolsuite™ - The super-summer music player