Input (grade 8): Norrington worked as a tenor through the 1960s, and in 1962 founded the SchÃ 1\/4 tz Choir (later the SchÃ 1\/4 tz Choir of London).
Output (grade 4): Norrington started his career singing tenor. In 1962 he formed the SchÃ 1\/4 tz Choir (later the SchÃ 1\/4 tz Choir of London).