This is what I mean, that the octave structure is preserved in equal temperament. https://images.squarespace-cdn.com/content/v1/5230e9f8e4b06ab69d1d8068/155106

This is what I mean, that the octave structure is preserved in equal temperament. https://images.squarespace-cdn.com/content/v1/5230e9f8e4b06ab69d1d8068/1551062768829-1VS0NZCDR512F6IYMZ50/ke17ZwdGBToddI8pDm48kCwSTBZKdmgEtKlOo-3gu3FZw-zPPgdn4jUwVcJE1ZvWQUxwkmyExglNqGp0IvTJZamWLI2zvYWH8K3-s_4yszcp2ryTI0HqTOaaUohrI8PIqc6t-Ne5COxx2SWfpD0FYUtCzAcK9G9uEeoI-f-TXWI/Pitch+Tuning+Distributed+on+Typical+Keyboard?format=1000w https://images.squarespace-cdn.com/content/v1/5230e9f8e4b06a...