Apple Music - Apple Music app combines your personal iTunes library with Apple's music subscription service. Music you have purchased from the iTunes store, or synced over from other sources, is available in the "Library" tab. Read more about Apple Music.

Playlist Machinery - Tools that help you create & organize your Spotify playlists

BeatSense - Discover great music hand-picked by real people, in a single click. FREE and in real-time!

Playmoss - Create playlists from YouTube, Vimeo and SoundCloud

humit - A social networking app for music sharing and discovery.

podsync - Simple and free service that lets you listen to any YouTube or Vimeo channels, playlists or user videos in podcast format