My interest is piqued. One of the biggest albums of all time but not one I'm very familiar with. Black Dog is a decent opener with some good riffs but not as memorable for me as Rock and Roll, which really turns up the speed and heaviness. Insane rhythm section. The Battle of Evermore is totally different, with mandolin and no drums at all. Stairway is Stairway. Still one of the all timers that builds to a hell of a solo and finish. The next couple of tracks are more subtle, Four Sticks in particular standing out with its dense layers of sound and riffs. Going to California is a pretty acoustic folk number and a highlight for me. Finally, When the Levee Breaks opens with thunderous drumming and then a heavy blues riff. It rumbles on at a mid pace with an incredible groove. Eight tracks that all bring something different to the table and the quality of the playing is immense. Complex arrangements. I might be a convert.