“*"Live albums always offer a precarious task for musicians. If a band merely fills the studio molds with too-perfect clarity, fans want for the lack of stage improv. If the band jams on the closing riff for six minutes, the fans yawn. So what's the perfect balance of fiddling and play-by-numbers? If you've ever exclaimed, "Man, the guitarist adds a little vibrato to the one note in the hook! And t”