How to Learn Theological Principles From Music

I asked this as a sort of devil's advocate question because I'm thoroughly on your side on this question. But I could imagine someone challenging you on that basis and saying, well, you want to learn certain theological principles from music. How do you know you're not just reading your current faith into them? So if you get like a Buddhist or an atheist comes along and says, I think music teaches my faith,. What would you say to that person? "We all come with our presuppositions and our frameworks and our assumptions about reality"