I had an email exchange with a very famous audio writer who was sure he was immune to it too. No one is immune. When I am I am enjoying the music, I really don’t care much about the mechanisms of perception. I know what I hear and I know what I perceive are effectively the same thing unless I am performing some sort of test. Bias works both ways too. We can fail hear things that are real because our dogma and our test results say they can’t be.I've had an argument with a university prof of psychology over this. He was adamant he was immune to cognitive bias because he designed blind tests for a living.