Eric Gustaf Ericson (26 October 1918 – 16 February 2013) was a Swedish choral conductor and influential choral teacher. Life and career. He graduated from the Royal College of Music (Kungl. Musikhögskolan) in Stockholm in 1943 and went on to complete his studies abroad, at the Schola Cantorum Basiliensis, Switzerland, and in Germany, Great Britain, and the United States. https://en.wikipedia.org/wiki/Eric_Ericson