In Chicago, musicians with any type of connection to jazz's avant-garde continue to wear the name Association for the Advancement of Creative Musicians (AACM) like a badge of honor -- and with good reason. The AACM, since the '60s, has been having a profound influence on avant-garde jazz by favoring space rather than density and offering a contemplative, reflective alternative to the blistering atonality associated with Cecil Taylor, Albert Ayler Read more on Last.fm