 1.9.19  8:22 am nice ok. no wonder so many of your songs sit very happily in my range in their original keys. but the Bbs in airport terminal are very resonant for how close they are to Ab. i think your walkin' around hum habit may be relaxing your cords even better than they already were.
don't forget, that's layered like crazy with instruments, plus i never have to use a take that's really not good enough