SAN DIEGO — In the 30 years that have passed since she made her high-profile concert debut at the age of 13, Anoushka Shankar ... marriage (to film director Joe Wright) end.

When sitarist Anoushka Shankar talks about the pain of the artistic process, she’s not speaking figuratively, or existentially. She is being quite literal. “Ever since I was a kid, I've had ...