Justine K Drennan’s Reviews > How Music Works: The Science and Psychology of Beautiful Sounds, from Beethoven to the Beatles and Beyond > Status Update

He’s talking about the key/mood fallacy and briefly mentions it could be an effect of the layout of black vs white keys on the piano, but it’s probably largely about slightly more complex key layouts on the piano eg some keys are much easier to do certain things in not for any harmonic reason but for ease of human familiarity given layout