Association for the Advancement of Creative Musicians (AACM) - Chicago organized self-help organization in Chicago in 1965 by African-American musicians to self-help - help in developing new, created by African-Americans, music and cultural values, in fact, in the media, record companies , concert halls, etc. were in white or were not interested in progressive jazz. During more than forty years connected with the AACM musicians developed new and highly influential ideas on the sound, sound, collectivity, instrumental technique, instrumentation, perform