To my ears, B-flat Major is a peaceful Key with a sweet nature.
Mozart’s last piano concerto is written in this Key.
G Minor is, for me, a Key of the night.
Mozart composed forty-one symphonies, thirty-nine of them in various Major Keys. The other two were both in G Minor.
Mozart obviously had an affinity for this Key, as did Beethoven for C Minor.
It is natural to fall in love with some Keys, while others are friends, acquaintances, or even