 In 1970 he moved to become Head of Music at The Latymer School and was later Director of Music for Chetham's School of Music.In 1983 he founded with Carl Browning the National Youth Choir of Great Britain.Brewer also worked as a consultant for various UK choirs and was adjudicator for the finals of "Choir of the Year" and the National Festival of Music for Youth in the UK and in international competitions.