I’ve been listening to more Indian classical music lately, so I was reading about ragas, these traditional musical forms that guide how you play and develop a piece. Instructions for creating a mood, if I can semi-ignorantly generalize. And take a look at the etymology…
Raga. 1788, from Sanskrit raga-s “harmony, melody, mode in music,” literally “color, mood,” related to rajyati “it is dyed.”
I like this idea of music as a “dye” for the mind.