At first I almost didn’t recognize this very different acoustic version of the beloved Led Zeppelin tune Black Dog. The whole story behind the recording is unclear, and in fact, if you go looking for answers you’ll find anything but consensus. What we do know is that it’s taken from The Slog, a late ’80s bootleg cut-up of a number of Zep standards. That’s really Plant we’re hearing; whether the guitar is Page or a mimic we may never know. But hell, it sounds like his style, and most importantly it sounds good. Sign me up.