Oddly, or perhaps predictably, or both, most of them still converge on the same basic pitch classes. The example I'm most familiar with is Carnatic and Hindust

Oddly, or perhaps predictably, or both, most of them still converge on the same basic pitch classes. The example I'm most familiar with is Carnatic and Hindustani music, where there are theoretically 22 tones per octave, and in fact the tones in most cases actually cover a range of frequencies rather than a single one. Nevertheless, the most common and most popular music from those traditions tends to only use about 7 tones per octave (equivalent to a western "scale"), and they still have a very central for tone ratios like 3/2.