I once played Oscar Petersen's piano. A Bosendorfer.
A Bosendorfer! Eight octaves or nine? I'm jealous as well as envious and somewhat broken hearted.
Despite being more than just overly well-endowed between my legs I cannot comfortably or reliably hammer out a 9th interval -- regardless of the key. So, the idea of playing a solid oh-so-cool 10th, the mainstay of a ten-key figured bass (not the fish) physically eludes me. Therefore, I'm stuck with whipping off quick accidentals which is OK for stride piano, but Latin Jazz? Nope. Yup, the secret is out: Midlifebear may have a big pee pee but he is cursed with small hands. So, I'm sort of stuck with investigating how to play Jazz by mostly exploiting diminished 7ths and faking it. I'm also relegated to Chopin's less challenging mazurkas, waltzes, preludes, etudes, anything written by Sati, and lots of Bartok and a little Ravel.
Bosendorfers are rather daunting and I want one. Ahh, the evil eye of piano envy! Curses! Curses, I say!
EDIT ADDED: How big were Oscar Peterson's hands? Pant, pant, pant, pant . . . .