There is an unwritten rule against playing ill-tuned pipes - and pipes that have been ignored for more than two days WILL let you know; they refuse to stay in tune and they will screech horribly. (I am serious about this. I joke that "they're like a woman, don'cha know, ignore them at your peril," but the reality is worse. Women are sometimes forgiving, bagpipes never are.) This is part of why I am not playing today.
Seriously, I would have to play them half-hour to an hour every day for two weeks before they'd stabilize, and I don't have the time.
Chattanooga! Fond memories there. My grandfather was a professor at Chattanooga U (now U Tenn) and my father grew up there. They had a lovely house (Southern mansion, to my mind) on Missionary Ridge, just a couple blocks from a memorial park.
Chattanooga is beautiful. I wish we could have spent more time there.