1, Yang Tuan is a choir, also called Beijing Philharmonic Choir. Founded on 1983 by Yang Hongnian, a famous music educator, conductor and professor of the Central Conservatory of Music. The group song is our song and belongs to a commercial training institution.

2. Meng Tuan is a children's choir founded by china national radio, and its songs include Let's Swing the Sculls, How Happy We Are, Happy Festival, Our Field, Listening to Mom's Memories, etc. Not a commercial training institution.