This is extremely interesting. Thanks. I will use it as an extra tool. I have a loudness analyzer/fixer from Waves, but this is a great double check.

I don't really care about loudness that much--I am into dynamic range. I like a .wav that looks like wave, not a 2 x 4 as Bud said. If I don't get a LUFS of about -18 and a DR of say 11 or 12 I am not happy.

I used "Start Me Up" by the Rolling Stones as a mastering reference on the last track I posted here (All Love Matters) and the DR on that song is astonishing--I think it was like 14 or something, and it wasn't that loud. But it is one of the most iconic rock mixes of all time.