+ # WARNING:
+ # * operation on set will not match against aliases
+ # * composite set w/ mbid set and whitout won't match either
+ queued_artists = MetaContainer([trk.Artist for trk in self.player.queue])
+ if ret & queued_artists:
+ self.log.debug('Removing already queued artists: '
+ '{0}'.format('/'.join(map(str, ret & queued_artists))))
+ ret = ret - queued_artists
+ if self.player.current and self.player.current.Artist in ret:
+ self.log.debug('Removing current artist: {0}'.format(self.player.current.Artist))
+ ret = ret - MetaContainer([self.player.current.Artist])