Trịnh Công Sơn has been played on NTS shows including In Focus, with Biết Đâu Nguồn Cội first played on 10 November 2023.

Trịnh Công Sơn (February 28, 1939 – April 1, 2001) was a Vietnamese composer, musician, painter and songwriter. He, along with Phạm Duy and Văn Cao, is widely considered one of the three most salient figures of modern Vietnamese music.

Trịnh Công Sơn wrote over 600 songs during the 1960s and 1970s. He became one of Occupied Vietnam's (Republic of Vietnam) best-known singer-songwriters, after his first hit, Ướt mi (Tearing 'Lashes) in 1957. He was frequently under pressure from the puppet government, which…