sentences:  Several commentators credit Harrison as the person most responsible for Indian music's surge in popularity in the West from 1966 onwards, via his work with the Beatles and his public endorsement of Shankar.Among these, author Simon Leng has described Barham as both a "birth partner" and the "closest confidant and fellow traveler" to Harrison during the latter's immersion in the genre.Barham played a key collaborative role on Harrison's soundtrack to the Joe Massot-directed film "Wonderwall" (1968).