Absolutely; that is one of the points they make on the site, they include the formula for determining all of the relationships between tones. What I don't follow is how that phenomena affects reaction to percieved quality of sound. That seems to be the sticking point as this Weber-Fechner Law modulates all results. I only bring it up as it appeared in a couple articles on testing and I had never heard reference made to the effects it might have in any of the current literature. Its new to me also.