sentences:  Klein has won Grammys for his work on Mitchell's "Turbulent Indigo" and "Both Sides Now"; and Hancock's "".Klein grew up in Monterey Park, California, the son of a Jewish aerospace engineer father and a stay at home mother.When Klein was in the junior high school, his mother enrolled him in The Community School for the Performing Arts, an after-school music program sponsored by the University of Southern California.