It's one of those obscure asides of cultural history that-let's say it, at the risk of straining credulity-changed the future. Maybe not so unbelievable, given that the vocalist was the colossus-like figure of Khansaheb Alladiya Khan. The story goes thus: his voice returns after two years of convalescence, but sans the graceful tonal quality of before. Bereft of his evocative power, the ustad must innovate, jettisoning direct emotionalism in favour of technical sorcery.