seen live "Seen live" is used by Last.fm users to mark bands (or tracks) they have seen performed live. Users can view everything they tagged with a specific tag in their library.
Subscribers used to be able to listen to a radio station of their personal tags, allowing them to listen to a station comprising only artists they've seen perform 'in flesh and blood'. However this service was discontinued in November 2010.
Although this tag has nothing to do with the musical genre of artists, it is considered unusual to tag composers (Wolfgang Amadeus Mozart, Johann Sebastian Bach, etc.) because they are neither performers nor alive.