AACM, or the Association for the Advancement of Creative Musicians, is a collective founded in 1965 in Chicago. It aims to promote and support innovative music, particularly in the realms of jazz and avant-garde. The organization provides a platform for musicians to collaborate, perform, and develop their artistic skills. The AACM is known for its emphasis on creative expression and the importance of community among artists. It has played a significant role in the careers of many influential musicians, including Henry Threadgill and Muhal Richard Abrams. The AACM continues to foster new talent and encourage experimental approaches to music.