We continued with Led Zeppelin and watched their live performance and while it got dull at certain moments, the entire show radiated  rock n' roll. What I enjoyed seeing was how much the band was into what they were doing and enjoyed playing for themselves if nothing else at all. The performance also varied a lot throughout in terms of sound and their experimentation with various sounds such as the bow (violin?, cello?) on the guitar that increased the length of the note in a different way than the guitar's pickups do, overall the performance wan't too bad.