Origin of Hangul
Ledyard holds that the Koreans adopted five core consonant letters from ’Phags-pa, namely ㄱ "g" , ㄷ "d" , ㅂ "b" , ㅈ "j" , and ㄹ "l" . These were the consonants basic to Chinese phonology, rather than the graphically simplest letters (ㄱ "g" , ㄴ "n" , ㅁ "m" , and ㅅ "s" ) taken as the starting point by the "Haerye." A sixth letter, the null initial ㅇ, was invented by Sejong. The rest of the consonants were developed through featural derivation from these six, essentially as described in the "Haerye"; a resemblance to speech organs was an additional motivating factor in selecting the shapes of both the basic letters and their derivatives.
Ge Wang
Ge Wang (born November 2, 1977) is a Chinese American musician, computer scientist, designer, author, and professor, known for inventing the ChucK audio programming language 
and for being the co-founder, chief technology officer (CTO), and chief creative officer (CCO) of Smule, a company making iPhone and iPad music apps. He also helped create the Princeton Laptop Orchestra and later founded its Stanford counterpart Stanford Laptop Orchestra, as well as the Stanford Mobile Phone Orchestra. 
Wang is the designer of the Ocarina 
and Magic Piano iPhone apps. Wang is currently an Associate Professor at Stanford University’s Center for Computer Research in Music and Acoustics (CCRMA). Wang is the author of "Artful Design: Technology in Search of the Sublime (A MusiComic Manifesto)", a book on design and technology, art and life, created entirely in the format of a photo-realistic comic book, published by Stanford University Press in 2018.