By Don Heckman Los Angeles – July 23.  (Tues.)  The Postal Service.  The electropop band – featuring Ben Gibbard and Jimmy Tamborello – celebrate their 10th anniversary.  Greek Theatre   (323) 665-5857. – July 24. (Wed.)  Dave Damiani and the No Nonsense Orchestra.  Vocalist and leader Damiani sings with the colorful sounds and swinging rhythms of… Read More Picks of the Week: July 23 – 28.