The Chinese Jazz Trombone Federation F.O.S. is a large band of full-length number + jazz rhythm group, and is an organization. The league was initiated and organized by the trombo player Yang Ming, and brought together a large number of Chinese professional trombone performers (including the chief trumpeter of the China National Symphony Orchestra Liu Yang) and the majority of trombone lovers and trombone students.

The F.O.S. band only uses the trombone to fully represent the symphonic limbs, and uses the trombone's singing skills, timbre and wide sound field to add rich colors to the music. The orchestra plays from trombone solo to 22 ensemble plus rhythm group, and the music performed together is shocking, expressive, and wide in style, from traditional classical music to modern music and jazz. All along, the orchestra insists that modern music requires a strong foundation of classical music to support the basic principles of scrutiny, constantly integrating new members, and easing everyone’s restrictions on musical style and performance form, thus helping China’s brass and the overall level of music. improve.