I once knew someone with perfect pitch who was (perfectly) half a tone flat, consistently, always, at certain times of her cycle - so yes, I think there may well be neurotransmitters involved…
That is a remarkable achievement - ‘not too bad’ on Level 1 Challenge 25 is a huge success…
That’s very interesting! I wonder if the hormones affected her hearing or perception of sounds…or maybe her voice. This monthly (vicious) cycle often is such a drag.
