Juts thought I'd share that with you all,
Yesterday I was watching one of those satriani's "masterclass" sessions (whose link I lost and I apologize for it)
and Satch made references to this concept, developed by one of his Luthiers named Bruce Sexhauer, the link is:http://www.sexauerluthier.com/pitch-temo.html
The basic Idea is that there seems to be a (mathematical)relationship between pitch and tempo, in other words, A=440hz so a song played in the key of A would sound more "natural" at (440/4 for example) at 110bpm.
Joe himself got puzzled at first and admitted than applied in some contexts it seemed to make sense, I had never heard of the theory so far and I just like the idea.
Has anyone else heard about those concepts?