I heard that the color red has a frequency of 43 trillion hz, and if you divide that by 2 over and over until you get a hz range that's audible to the human ear you could find the equivalent Octave of the musical note to hear what that color sounds like. I also heard that light is vibrating photons and sound is vibrating air molecules so you can compare them... If you had a ear that could hear ultra high frequency's could you hear the photons vibrating and would they intern vibrate the air molecules next to them on the same frequency? I see lots of charts on the web comparing color to sound as if they are the same thing, is there a practical way to look at this? I hear lasers can generate underwater sound dose this relate? And is the frequincy of a sound underwater the same as it would be if the sound was in air?