I heard a new song last weekend called “Soul Of The Machine.” It’s a simple, old-timey number in E minor with a standard blues chord progression (musicians in the know would call it a 1-4-5 progression). In it, a voice sings about being a trapped soul with a heart that once beat but is now cold and weak. “Soul Of The Machine” is not a real song at all. Or is it? It’s getting harder to say. Whatever it is, it’s the creation of Suno, an AI tool from a startup of the same name focused on music generation. Rolling...