By Don Heckman Los Angeles – Apri. 3. (Wed.)  Bobby McFerrin.  One of the music world’s most uniquely gifted vocal talents, applying his startling skills to a celebration of his father’s gospel singing in a program titled Spirit You All.  Disney Hall.   (323) 850-2000. – April 3. (Wed.)  Dave Damiani and the No Vacancy… Read More Picks of the Week: April 2 – 7