On this album ,Zeppelin begin to become more electic in their music after two raunchy blues albums to get the ball rolling. They haven’t completely left their power behind though. IMMIGRANT SONG is a short but immensley powerful song with plants banshee wail like nothing you’ve ever heard. CELEBRATION DAY has a brlliant warped slide guitar riff and OUT ON THE TILES is an underrated classic zeppelin tune with its funky swagger. SINCE I’VE BEEN LOVING YOU is a brilliant epic not quite of the same standard as other zeppelin epics but it still remains a concert favourite. But the secret of this album is the folky side of it which is excellent throughout. GALLOWS POLE is a menacing interpretation of a Leadbelly classic, BRON-YUAR-STOMP is an infectious tune, but the standouts ore most definately TANGERINE which is a quite amazing tune showing how much Zeppelin have matured as can be said for THAT’S THE WAY which is equally pristine and one of their best compositions.What this album does is show you that Led Zeppelin were far more than straight blues rock or heavy metal, their compositions were detailed thoughtful and even sensitive and of all their albums, this shows that side of them best and also gives us a little sneak preview of what was to come next.