By Don Heckman Los Angeles July 20. (Wed.)  John Daversa Big Band.  Trumpeter Daversa’s adventurous, often unpredictable charts make his big band appearances into engaging musical events.  Catalina Bar & Grill.  (323) 466-2210. – June 21. (Thurs.)  Bruce Forman Quartet.  Guitarist/educator/novelist Forman is one of the jazz world’s true multi-hyphenates.  Here he is, with his… Read More Picks of the Week: July 19 – 24