I had a bit of a Google for this and found this thread: https://www.saxontheweb.net/threads/what-is-meant-by-low-pitch.112091/ https://www.saxontheweb.net/thre

I had a bit of a Google for this and found this thread: https://www.saxontheweb.net/threads/what-is-meant-by-low-pitch.112091/ https://www.saxontheweb.net/threads/what-is-meant-by-low-pit... They seem to think "low pitch" is 440Hz and "high pitch" is the one that lost out, 457Hz (sounds like a semitone higher to me).