Hope to improve bass, melody and rhythms

Hope to improve bass, melody and rhythms
I’ve been using these new features recently, and I found some mistakes. And there was some confusion. It’s not a good match.
I think this idea is correct, but as a developer, it should be more perfect. The best way is to provide styles according to the music classification, and then you can separate bass, melody and rhythms in the music, so that you can quickly complete the music accompaniment. Now it just provides a lot, but it can’t be used together. I feel very confused.