By Don Heckman Los Angeles – July 12. (Tues.)  John Pisano’s Guitar Night.  With Mundell Lowe and bassist Jim Hughart.  Guitar Night’s always a pleasure, but here’s one not to miss – a pair of veteran jazz guitarists in action with the support of a fine bassist.  Vitello’s.   (818) 769-0905. – July 13. (Wed.)  Chris… Read More Picks of the Week: July 12 – 17