[dead]

and who pulled off a wonderful theme album, Days of Future Passed, long before Sgt. Pepper

Bzzzzzztttt. Sgt. Pepper came before it.

Besides, the Beatles Rubber Soul was the first theme album.

[Chi-townChief]

"Besides, the Beatles Rubber Soul was the first theme album."

Theme or concept albums were very popular in the 50s; Sinatra did a string of them.