The page 69 test
Recently I read about the page 69 test. The theory is that if you open a book and like page 69, you'll probably like the book. It's sort of like the flip side theory. I developed this theory as a teenager. In this theory, I posited that if you like the flip side of a hit single, you'll probably like the album. It shows the group has depth. It's like meeting someone at work. At work you see the person's page 69 not just the hit single.