In case you were wondering (and I admit that you probably weren't), this particular 5.1 mix won't furnish an instrumental-only version of the electric songs: Dylan's vocal is present on the left and right front channels as well as on the centre channel. That said, listening selectively to the different channels does let you gain some different perspectives on the album. For example, playing just the rear channels as a stereo performance lets you listen without distraction to Bruce Langhorne's very distinctive and fluid electric guitar playing; and you realise just how big a part he played in forming this album's character.