@LoChinajm
Why would that be the case?
@voltronic
Being snarky, sorry. Well-tempered clavier accommodates that (for, e.g.,) G# is technically sharper than Ab by fractions of a Hz, as leading tone etc.
@LoChinajm
Oh well actually that goes back way earlier. Well explained here:
https://www.goodreads.com/book/show/168325.How_Equal_Temperament_Ruined_Harmony
@voltronic
Only pianists can get away with it