The tune Westminster Abbey was composed by Henry Purcell who served as organist at Westminster Abbey from 1679 until his death at the age of 35 or 36 in 1695. He is buried near the organ at Westminster Abbey. The melody is most often associated with the text Christ Is Made the Sure Foundation.

See a list of other hymn and chorale themes here.

Videos:
Timothy Howard – Postlude on ‘Westminster Abbey’ – Pasadena Presbyterian Church
Philip Marshall – Improvisation on ‘Westminster Abbey’ – Lincoln Cathedral