Notice how Styx albums tend to get paired together?
Equinox and Crystal Ball
GI and Po8
Would Cornerstone and Paradise be a pair?
How about Kilroy and Edge?
I would say you could pair Cornerstone and Paradise as "lighter" sounding Styx albums (even though Paradise really just has one ballad), but Kilroy and Edge are different enough that they kind of stand on their own.
8 original A&M recordings. Was that the initial deal that they signed way back in 1975?