Y'know, this might not help much, but I could totally bullshit at this point and say Tarkus has...something of a music theme?
Idk, Tarkus is an awesome album, with an awesome cover.
[img=http://upload.wikimedia.org/wikipedia/en/e/ef/Emerson,_Lake_%26_Palmer_-_Tarkus_(1971)_front_cover.jpg]