Artificial Spirit, is the developer of Teen Spirit Media Player. There is a dedicated site for this project to http://teenspirit.artificialspirit.com so please update your bookmarks.

Teen Spirit is an Audio-Video player and organizer with a very user friendly interface. It can retrieve info from internet such as lyrics, album reviews, album covers, artist biographies, artist pictures (more to come). Teen Spirit (Conium) keeps history of the files you play, lets you review statistics and generates a personal hitlist based on which songs you listen to most. It features an ID3v2 tagger (and mass tagger) and an easy to use renamer (and mass renamer) with preview. It helps you discover tracks in your vast music collection with features like auto-continue or by playing the music quiz. As a music organizer it lets you catalog Hard Disks, Network drives, Data CDs/DVDs, AudioCD (with auto CDDB - FreeDB support), USB memory sticks, mp3 players (including iPod) in a friendly way. Teen Spirit (Conium) has been developed in C++ for speed and efficiency.
Teen Spirit download page