I don't have perfect pitch, just an average hobby musician, but I can immediately tell when an orchestra is tuned up or down (A 440Hz vs 441 or 442, or baroque, really low).
I also find out of tune music extremely distressing, and can't stand it. My ears actually have this weird "bleeding" sensation if I listen to out of tune music long enough.
I also find out of tune music extremely distressing, and can't stand it. My ears actually have this weird "bleeding" sensation if I listen to out of tune music long enough.