As a lot of music theory conversations break down, when I realize someone’s asking, “What is this chord for?” Chords aren’t for anything. My kid, when he was little, he comes running to me one day sobbing, “Daddy, what are mosquitoes even for?” Mosquitoes, they’re in it for themselves, just like us. That’s how you should be thinking about your music questions.
I don’t know what chords are for, but I know what they do.
