Why learn to attach importance to folk songs as the symbol and foundation of national traditional music culture?

As the symbol and foundation of national traditional music culture, research value folk songs have always been valued by the music theory research community. Music theorists have enriched and improved the scientific research achievements in the field of music through the research on the history, culturology, sociology, ethnology and music genre of folk songs, which has made people have a deeper understanding and understanding of the essence of traditional music culture.