Complex sentence: Hurford was appointed organist of Holy Trinity Church, Leamington Spa from 1956 to 1957 and then organist and choirmaster of St Albans Cathedral Choir in 1958, serving with great distinction in this capacity for exactly twenty years.
Split into simpler sentences: Hurford was appointed organist of Holy Trinity Church, Leamington Spa from 1956 to 1957. He was then organist and choirmaster of St Albans Cathedral Choir in 1958, serving with great distinction in this capacity for exactly twenty years.