What is a Shruti? Why is it the most important aspect of music?What do we use in our Music, ‘Shrutis’ or ‘Nadas’?How can we practically differentiate between Shrutis and Nadas?How a Raga is formed?Can we ‘measure’ a Shruti?Why are Shrutis 22 only? Who fixed them? Can anyone not create new Shrutis?