Freedom to differ is not limited to things that do not matter mush. That would be a mere shadow of freedom. The test of its substance is the right to differ as to things that touch the heart of the existing order.
You feel the music needs something but you don't know what. So you start searching, fitting, measuring, trying. Every time you try another angle. And sometimes that's frustrating, especially if you don't come up with something for three days.

