You can read chunks of the Carterette and Kendall chapter at Google Books. It's long, a literature review, comes at the questions from a number of angles, and looks really interesting, but I don't actually think they're saying that the chromatic scale contains the universe of world music. The octave looks more universal than how it gets chopped up into intervals.
We should remember that Western classical music didn't treat the
twelve tones as equal until Schoenberg, and then it sounded pretty
jarring. Some intervals and some scales were more equal than others.
E.g., the tritone was the 'devil's interval' and sounded dissonant to
Western ears, but it came to be used for tension-and-release purposes.
>From the late 19th century at least, 'progress' in music came to be
associated with breaking down the barriers between the keys, splicing
them together. This was a big part of Richard Strauss's shtick,
famously in Salome. And the road to twelve even tones runs through a
growing self-consciousness about the rules of the invervals and scales
(which goes a long way back), and Debussy's encounter with the alien
gamelan music at the 1889 Universal Exhibition in Paris was a crucial
stop on the road. His comment about the essence of music being the
space between the notes is sometimes interpreted as being a
proto-Cageian appreciation of silence, but I think he actually meant
intervals.
Cheers, Mike scandalum.wordpress.com