Ah hah! I have thought

Ah hah! I have thought of an example where timbre is of utmost moral importance: the absolute, unqualified evil of playing Scarlatti or Bach on the piano. We should all pray that Vladimir Horowitz repented of this before death, otherwise, he is certainly in a bit of hot water, or worse.

Bach and Scarlatti belong on the harpsichord and let him who says cast-iron is good for the Baroque be held in anathema! Shake the dust from your shoes as you leave the factory of the evil villager (ok, that is a beyond geeky pun - if you understand it, you are as bad off as I am).