Question

"And far into the night he crooned that tune.

Answer 1

This last line is a brain teaser.Sleeping like a rock is usually a good thing. Right? But sleeping like a dead man is a pretty dark image to associate with sleeping like a rock.It's not like we'd expect a blues-man to sleep like a baby.He said he wanted to die in the song, but this seems different. Maybe he is like a dead man, because he rests in peace.