Body attended secondary school as a boarder at King's College, Auckland. There, his interest in both music and painting was kindled amidst the school's dynamic musical life under the leadership of music teacher L C M Saunders, with whom Body took piano and organ lessons. On completing secondary school, he applied for the Elam School of Fine Arts but instead chose to study music at the University of Auckland, beginning a Bachelor of Music in 1963. At that time composition was not offered as a course of study at an undergraduate level; nevertheless, Body composed prolifically during his undergraduate years. While studying at the University of Auckland, Body also took organ lessons with Peter Godfrey and sang in the choir of St. Mary's Anglican Cathedral, Parnell. In 1965 he was appointed organist and choirmaster of St. Aidan's Anglican Church in Remuera.