Delhi’s biggest and most popular classical music festival entered its 25th year. “The simple, unquestioning, eagerly- accepting audience was so refreshing.” At the launch of the festival in Vrindavan, Sri Shrivats Goswami of the Radha Raman mandir spoke of the musical link between Vrindavan and Delhi. But, I hear he does not play much now.” Ustad Amjad Ali Khan, uniquely …