Ravi and Anoushka Shankar at Davies Symphony Hall​Since taking up the sitar in the late 1930s, Indian musician Ravi Shankar has released more than 40 albums, composed for film director Satyajit Ray, collaborated with Ali Akbar Khan and Philip Glass, and taught George Harrison everything he knew about the complicated instrument. His private life has been no less adventurous, as he fathered children by several wives and mistresses, giving the world the soft-pop singer-songwriter Norah Jones and