sentences:  Santha died on 11 April 1981 from a heart attack shortly after his son Jagath drowned under mysterious circumstances in a swimming pool.Sunil Shantha was the first to compose the world's first one note song which is a masterpiece, in 1967.It is named as "Gum Gum Gum" (Wasp Song), which is sung in the tune of a Wasp's hum.