You mean emotion? If yes, this page helps me enormously when I want to start writing a new song: https://legacy.wmich.edu/mus-theo/courses/keys.html https://le

You mean emotion? If yes, this page helps me enormously when I want to start writing a new song: https://legacy.wmich.edu/mus-theo/courses/keys.html https://legacy.wmich.edu/mus-theo/courses/keys.html I’m not sure how scientifically valid this is, but when playing these notes, I agree with their designated emotion. Though, that might just be my western brain vibing with the western brain of the author. In any case, when I feel sad, and I press the F minor, I agree.