Facts are theory-laden. However, note that such observations don't need to be theory-independent in order to be reliable. For a non-musician who doesn't read music, it might take many months of study to be able to develop the theoretical baggage necessary to make this observation. This does not mean that the observation is purely an artifact of the observer. No evidence is absolutely reliable, and, arguably, no evidence is theory-independent.
Pluralism is valuable.
In all aspects of human endeavor, there is value in examining alternative perspectives, considering different ways of doing something, and imagining how things might be different. A certain creative choas can be useful. Not everything in life needs to make sense. It is useful to stir us from our complacency, to stimulate our imaginations, to contemplate the absurd. One of the values of art is that it offers challenges to how we view the world.