sentences:  The "On the Corner" boxed set covers three years of sessions, from March 1972 to May 1975, and contains music with different styles, concepts, approaches and personnel.Similarly, "The Complete Bitches Brew Sessions" includes all of the sessions Davis recorded between August 1969 and February 1970, although the actual "Bitches Brew" sessions took place over just three days in August 1969.The sessions for the 1972 album "On the Corner" were recorded in June and September 1972.