Hanni Christen (1899- 1972) collected documents of Swiss folk music for decades. She wrote down over 11,000 folk song melodies from farmers and musicians. Numerous sound recordings of her field recordings, tell us about Swiss folk music.
In 1958 she visited the musician, choirmaster and teacher Tumasch Dolf (1889-1963) in Zillis (Grisons), who played three Grisons violin dances for her
Source: Swiss National Sound Archives