[telesilla]

Pianos actually sounded differently back then, different keys were genuinely distinct.

https://wmich.edu/mus-theo/courses/keys.html

"When equal temperament became the dominant tuning after 1917, the aural quality of every key became the same, and therefore these affective characteristics are mostly lost to us"

[wirrbel]

Some of the stuff that is nowadays attributed to temperament is actually related to certain instrumentation being preferably set in specific keys that were easy to play with the available instruments.

Also competing tunings on various instruments mean that the situation was never a "fix" target.

I am not saying tunings don't play a role, in fact you can hear that John Frusciante sometimes has played with slightly detuned guitar strings for effect. But it its also not so simple as such compilations of key - and - purpose might make you want to believe.