Goggles Music Manager is a music collection manager and player that automatically categorizes your music files based on genre, artist, album, and song. Basically, it's a simple music player that does it's job and works really fast. Other than it's speed, I was also impressed with how little system resources it uses: 8.7 MB of RAM (on my system) and never more than 2% CPU (my music collections is something near 40.000 songs).