For the Wikipedia, I've come up with 3 possibilities that I would like to write on. None of these three have any Wikipedia page yet that I've been found.
1. Sang Tong: Chinese composer, use non chord tone in 1960s.
2. Wang Jianzhong: Chinese composer, instead of use non chord tone or twelve tone system, he used five-tone scale
3. 20th and 21st century piano technique