I get where your going with this Kev, but I havent put much thought into it. I will eave you with this though, whether its rock, jazz, classical, etc,,,and whether its a 1 minute tune or a 45 minute tune,,,,,,I dont care just as long as its good. Come to think of it, the majority of the albums I really dig (Beatles not included) have a lot of long songs, but I like a ton of prog music so its neither here nor there.