Two things in particular make Tell Tale Signs a god-send for the Dylan analyst. One is that it shows how tightly interconnected Dylan’s last three albums are, not only musically but also lyrically: text fragments and themes float between them as if they were part of the same triple album. The other is that it gives an opportunity to study the process that so many musicians who have worked with him have mentioned: that songs can change radically from one session to the next or even between takes. The three versions of “Can’t Wait” are particularly revealing in this respect.