Yes. Another key thing with colour is we can't visually see the difference between a full spectrum (like sunlight) and where there only a few peaks being broadc

Yes. Another key thing with colour is we can't visually see the difference between a full spectrum (like sunlight) and where there only a few peaks being broadcast (like an LED display) as long as they fall on the cones similarly. Aurally we are incredibly good at understanding ratios, which the fundamental basis of music, in a way that the eye is not. Whether we can hear and state the difference between F4 and F#4 is simply not a priority of the body as these scales are constructed culturally. The eye and ear are simply built very differently for different purposes.