Christopher Chiyan Tin (born May 21, 1976) is an American composer of concert music, film, and video game scores. His work is primarily orchestral and choral, often with a world music influence. He has won two Grammy Awards for his classical crossover album Calling All Dawns. Tin is best known for his choral piece Baba Yetu from the video game Civilization IV, which became the first piece of video game music ever to win a Grammy Award in 2011. His Grammy win was considered a significant milestone for the critical acceptance of music from video games as a legitimate art form.