http://www.downbeat.com/default.asp?sect=education&subsect=jazz_15 Down Beat's Jazz 101: Post-Bop John Ephland explains origins, characteristics, musicians of the Post-Bop era. http://www.outsideshore.com/school/almanac/html/Jazz_Styles/Mainstream_Jazz/Post_Bop.htm Post Bop Characteristics and protagonists of the music developed from bebop, hardbop and cool jazz.