Well, Katy Perry just got sued millions over a copyright infringement where there is a four note line in the arrangement that is similar.
https://www.youtube.com/watch?v=W4MuhPqfIk4
According to this Led Zeppelin should also pay out big money for copyright infringement. So why does Zeppelin get off and Perry pay millions thru the nose?
As far a Achilles Last Stand goes — it’s the kind of song that makes Zeppelin into two different bands. When you hear
1. In My Time of Dying
2. For Your Life
3. Trampled Under Foot
4. Nobody’s Fault but Mine
5. Achilles Last Stand
you go, “Uh? Is this the same band?”
1- Out on the Tiles
2- Ten Years Gone