Audioscrobbler

Audioscrobbler

Audioscrobbler builds a profile of your musical taste using a plugin for your media player (Winamp, iTunes, XMMS etc..). Plugins send the name of every song you play to the Audioscrobbler server, which updates your musical profile with the new song. Every person with a plugin has their own page on this site which shows their listening statistics. The system automatically matches you to people with a similar music taste, and generates personalised recommendations.

データの塊として興味有ということで、メモ

その他諸々
MusicBrainz

MusicBrainz is a community music metadatabase that attempts to create a comprehensive music information site. You can use the MusicBrainz data either by browsing this web site, or you can access the data from a client program ? for example, a CD player program can use MusicBrainz to identify CDs and provide information about the CD, about the artist or about related information. You can also use the MusicBrainz Tagger to automatically identify and clean up the metadata tags in your MP3 collections. Find out more in the introduction.

last.fm

Last.fm is a personalised online radio station that plays the right music to the right people. Songs spread from listener to listener.
You get your own online radio station that you can fill up with the music you like. This information is used to find users who are similar to you. With this information Last.fm can play you new artists and songs you might like.

とりあえずこの辺関連サービス一式まとめてつるし上げ