MusicIP is similar to
Pandora or
Slacker or
Last.FM: it makes playlists for you based on songs you already know. The huge difference is that it does this
out of tracks from your own library. If you have a large music library like I do (
58,590 tracks and climbing), you sometimes forget what you have. Or you have stuff that you wanted to own, but you've never listened to every track. MusicIP is a perfect fit here. You give it a song (or an album, or an artist) and tell it to generate a mix based on that input. It gives you back a mix of songs from your library that have musical qualities in common with the seed song. It's a great way to get re-acquainted with your own music collection.