Annapurna Devi, a noted Indian musician and teacher whose decision to stop performing relatively early in her career made her something of an enigma, died on Oct. 13 in Mumbai. She was 91.
Ms. Devi learned at the feet of her father, Allauddin Khan, a revered figure in Indian classical music, and was married for years to one of his students, the sitarist Ravi Shankar. She played the surbahar, often described as a bass sitar, a difficult instrument that few if any women of her era played. The small number of people lucky enough to hear her were amazed by her mastery of it.