PlaylistMap - Connect with Spotify playlist curators from around the world
Musish - A web client for Apple Music
Undrtone - Social layer on top of Spotify and Rdio from Scott Vener
feverTunes - A web player for Apple Music support adding tags to playlist
SoundCloud Charts - The most played tracks on SoundCloud this week
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.