When he retired as Professor of Pianoforte and Composition in 1951 at the age of 85 , he had completed 64 years of service .
As a teacher , Morgan 's tenure at the Guildhall was exceptionally long .
When Morgan retired as Professor of Pianoforte and Composition in 1951 at the age of 85 , Morgan had completed 64 years of service .
As a teacher , Morgan 's tenure at the Guildhall was exceptionally long .