Some puzzles in The Witness are sound based. So you need to distinguish high and low pitch sounds, and this is just headache for me. Literally.
Thereby, I would like to someone else to do this painfull job for me, but only this part: Imagine that you have a person with big hearing problems and you need to reformulate those puzzles for them, using music notation, or text description, or pictures, things like this. Please do it with minimum amount of spoilers to the puzzles themselves.
As a matter of fact, I was able to solve puzzles, which one needs for a laser) by trial and error and what I need right now is to understand sounds from the additional (vault) puzzle.
But still, I think it would be nice to have a complete answer, which includes decoding of all sounds in the puzzles.