Late Sri T. S. Visweswariah (1929-2009) wrote this book over a 10-year period in the twilight of his life. A civil engineer by training and a freedom fighter in his youth, Sri Visweswariah was a life long music lover. He was always singing and asking his children, "Which raga is that?" Sri Visweswariah was a meticulous hobbyist and often hosted musicians who visited Bangalore. He would record their concerts on a reel-to-reel tape recorder. He studied music and wrote this book in a passionate, readable, understandable and detailed manner that can only be achieved by someone who wants to share his love of the subject!