Yes and no.... David L Burge promoted his "perfect pitch" course as color hearing.... but never intended it to be a 1:1 relationship between a tone and a particular color. In his ads he describes the notes to be "as unique and as obvious as seeing colors" and in his course he described an F# to be "vibrant, like the color red" while "Eb sounded soft... like the color blue" People love taking the easy way out and thought he was saying F# was RED, Eb was Blue, etc... etc... That was NEVER what he was trying to explain. I know two people with perfect pitch... and neither relate it to color. The mention of color puts a puzzled look in their eye... to them a G is a G... nothing else sounds like a G. It is so obvious to them, they can't figure out why we don't all hear it. Absolutely... when it comes to pitch the math represents the "relative association", not the absolute. Even a person with perfect pitch (absolute) will agree that relative pitch recognition is far more important than the gift they have. Simply recognizing the note does not tell you how they go together.