Are we missing something here? I begin to wonder if this offender has some sort of hearing problem. Is there such a thing as auditory dyslexia?
I confess that I have a hearing problem that causes me to hear different pitches in my two ears, depending somewhat on the sound levels involved.
This happened as a result of Menieurs disease, which severely reduced my hearing on one side as well. It took me a long time to learn (?) to cope with this problem.
MD