On 2 February 1969, on British television, he gave the first modern performance of Edward Elgar's "Concert Allegro", Op. 46. The piece was never published and the manuscript had long been believed lost, but it came to light in 1968. Ogdon and Diana McVeigh developed a performing version of the piece from Elgar's manuscript, which was full of corrections, deletions and additions. Between 1976 and 1980 Ogdon was Professor of Music (Piano) at Indiana University. He completed four comprehensive tours of Southern Africa to enthusiastic acclaim between 1968 and 1976 and dedicated a composition to his tour organizer Hans Adler.