Kind of cool - lots more in the link.

http://www.sciencedaily.com/releases/2011/03/110325102008.htm

Universal Property of Music Discovered

ScienceDaily (Mar. 25, 2011) — Researchers at the Institute for Logic, Language and Computation (ILLC) of the University of Amsterdam have discovered a universal property of musical scales. Until now it was assumed that the only thing scales throughout the world have in common is the octave.