SM--The reason I was able to stay up all night is because I have been working 6p to 6a for about 30 days now. Got a day off for my concert but it would be a mistake to try to do one "day" shift and go back to nights. Otherwise I would have been listening to the end of groove thump in my sleep. I didn't wear earplugs at the concert. It was outdoors, still loud, but 30 years in a power plant has kind of "tweaked" my hearing. You are certainly right about the cat, books, etc. It all comes and goes.
Ah, that makes a lot of sense. Thanks for explaining. I don't know why things sounded so good on that particular night in your listening room, but I'm happy that they did.
Sometimes everything just seems to click into place. There are probably many reasons for it. I don't know why it happens, but I love it when it does.