Music For Makers - Licensing good music has never been this easy.
Magic Playlist - Get the playlist of your dreams based on a song
TunePocket - Download 11,000+ royalty free music tracks and sound FX. Buy once, use forever. New music added daily. Save over 50% compared to most popular similar services. Incredible value!
Spotalike - Spotify playlist with similar songs, according to Last.fm
Fugue - Free and premium stock music for your videos, games, and UI
Playlist Machinery - Tools that help you create & organize your Spotify playlists