I didn’t realize, “Furry Sings the Blues” was autobiographical . . .She wrote it about her encounters with Memphis music; the title alludes to bluesman Furry Lewis---who actually hated the song and demanded Mitchell pay him royalties if she was going to use him as a subject. (Furry Lewis also toured with the Rolling Stones once upon a time.
As for Bob Dylan, I still think Bringing It All Back Home, Highway 61 Revisited, Blonde on Blonde, John Wesley Harding, Planet Waves, The Basement Tapes, and Blood on the Tracks are the man's best music . . .
I think what sets Dylan apart from at least most if not all of his peers from the 60s is that he continues to write great music, although not at the clip he did between Bringing It All Back Home and Blonde on Blonde. I would put especially Time Out of Mind and Love & Theft on your list as well.