Jan Rychlík
Born: 27th April 1916, Prague, Czech Republic
Died: 20th January 1964, Prague, Czech Republic
Nationality: Czech
Jan Rychlík was a Czech composer and music theorist. He was one of the most important exponents of the Czech New Music in the 1950s and 1960s.
Read more at https://en.wikipedia.org/wiki/Jan_Rychlík