Zend_Service_Audioscrobbler provides several methods for
retrieving data specific to a single tag, specified via the
setTag() method:
tagGetOverallTopTags(): Returns a SimpleXML object containing a list of Tags most frequently used on Audioscrobbler.tagGetTopArtists(): Returns a SimpleXML object containing a list of Artists to whom the current Tag was most frequently applied.tagGetTopAlbums(): Returns a SimpleXML object containing a list of Albums to which the current Tag was most frequently applied.tagGetTopTracks(): Returns a SimpleXML object containing a list of Tracks to which the current Tag was most frequently applied.