The Eternal Jukebox - For when your favorite song just isn't long enough
Magic Playlist - Get the playlist of your dreams based on a song
Jukebox Music Player - Jukebox Music Player is an app that allows you to share your music playlist via email or print it on a page.
Spotalike - Spotify playlist with similar songs, according to Last.fm
AMI Music - AMI Music, formerly known as BarLink, is an app that offers a unique and convenient way to take control of your music jukebox from anywhere.
Spotify - Map shows when two people play same song at same time