sentences:  Trinity College London validated Trinity College of Music's Graduate Diploma (the GTCL) before it was replaced by the BMus model in 1997.Trinity College of Music has an historical association with Freemasonry, with the Trinity College Lodge No 1765 being founded in 1878 by seven early teaching members of the college who were freemasons, including the founder, the Reverend Henry George Bonavia Hunt.In the past, freemasonry was an important though private feature of the life of the College, among both members of staff and the undergraduate and postgraduate men.