A little more than 50 years ago, in 1955, Ali AkbarKhan issued an LP called Music of India: Morning and Evening Ragas, with spoken introduction by violinist Yehudi Menuhin. Until then, Indian music was terra incognita in the West. When the same album was reissued as a CD in 1995, under the title Then and Now, it was nominated for a Grammy.

In the last 50 years, there has been the explosive influence of Indian music and culture in the West. Words such as karma, yoga, raga, nirvana, all once unknown here, have entered the language. Most famously, the wonders of the Indian...