sang Yun, also spelled Yun I-sang (17 September 1917 – 3 November 1995), was a Korean-born composer who made his later career in West Germany.Yun was born in Sancheong (Sansei), Chōsen (today part of independent South Korea) in 1917, the son of poet Yun Ki-hyon. His family moved to Tongyeong (Tōei) when he was three years old. He began to study violin at the age of 13 whereupon he composed his first melody. Despite his father's opposition to pursuing a career in music, Yun began formal music training two years later with a violinist in a military band in Keijō (present day Seoul). Eventually his father relented once Yun agreed to enroll in a business school while continuing his musical studies.