When was the independent music and dramatic arts school  founded from which Howard Milner got post graduate degree?
Howard Milner: Howard Milner (23 February 1953 – 6 March 2011) was a British tenor. Howard Milner:  He then won a music scholarship to Monkton Combe School, read English at Cambridge University followed by post graduate at the Guildhall School of Music and Drama. Guildhall School of Music and Drama: The Guildhall School of Music and Drama is an independent music and dramatic arts school which was founded in 1880 in London, England.
1880