Marking 50 years for Chicago's most important and innovative ensembles, formed in 1969 to advance creative musicians as part of the AACM, is this tribute to and based on music written by late members Lester Bowie, Malachi Favors, and Joseph Jarman, performed by 15 innovative musicians young and old, and presented in 2 CDs: one in the studio and one live at the 2018 Edgefest.