"Robertson was educated at the Royal Academy of Music and served in the army from 1914-18 in India, Egypt and Palestine. In 1919 he lectured on music at various evening institutes and in 1920 joined the staff of the Gramophone Company, of which he later became the director. In 1930 he studied in Rome and became a priest. Books on Gregorian plainchant, on church music and other musical subjects followed. He joined the BBC in 1939, and remained there until his retirement in 1952. He produced many programs for the BBC relating to music. For many years he reviewed records for the Gramophone, and served as the magazine’s music editor from 1952-72."