Keiko Abe
Born: 18th April 1937, Tokyo, Japan
Nationality: Japanese
Keiko Abe is a Japanese composer and marimba player. She has been a primary figure in the development of the marimba, in terms of expanding both technique and repertoire, and through her collaboration with the Yamaha Corporation, developed the modern five-octave concert marimba.
Read more at https://en.wikipedia.org/wiki/Keiko_Abe