India, Jan. 30 -- When Vedi Sinha from The Aahvaan Project starts singing "Bhala hua meri matki phoot gayee/ Main to paneeyan bharan se chhoot gayee" (Thank God my pitcher broke; I'm finally free from hauling water) audiences do a double take. Her voice is husky, commanding. It moves effortlessly from earthy folk to full-throated rock, as Sumant Balakrishnan's bluesy guitar riffs coil around the melody. The percussionist Makrand Sanon switches effortlessly between the drums, the cajon, the djembe and sea rattles. Their sound feels unmistakably now, but the words are not. Kabir wrote them in the 15th century. The pitcher symbolises worldly attachment; its breaking, liberation. After a decade of noise, this kind of Sufi music feels like a r...