ACO exists to expand the definition of American orchestral music to ensure an inclusive and vibrant future. American Composers Orchestra (ACO) is dedicated to the creation, celebration, performance, and promotion of orchestral music by American composers. With commitment to diversity, disruption and discovery, ACO produces concerts, K-12 education programs and emerging composer development programs to foster a community of creators, audience, performers, collaborators, and funders. ACO identifies and develops talent, champions established composers as well as those lesser-known, and increases regional, national, and international awareness of the infinite variety of American orchestral music, reflecting gender, ethnic, geographic, stylistic, and age diversity. To date, ACO has performed music by 800 American composers, including over 350 world premieres and newly commissioned works.