In my 'non-western music exposure' I feel that we (chinese music) are not exploring the progressions well enough. A lot of emphasis is placed on melodic leading voices but largely ignores the underlying chord progression. Anything that's not overly-heard / played are deemed dissonant and "too foreign". The results are often too sweet sounding and repeating of others. I guess that's why there are not many jazz musicians from China (lol).