Which pair wrote the music and lyrics respectively for “He Was Beautiful” based upon the melody "Cavatina"?

The melody of “He Was Beautiful” was originally written by British composer, Stanley Myers, as a musical piece for the piano, but at the invitation to do so by the British classical guitarist, John Williams, in 1970, Myers re-wrote the music for guitar.

In 1973, Cleo Laine wrote lyrics to the melody known as “Cavatina” and recorded the song "He Was Beautiful" accompanied by Williams in 1976. Two years later the evocative Williams guitar version became the signature theme for Michael Cimino's 1978 film “The Deer Hunter”, for which Stanley Myers won the Ivor Novella Award.

"He Was Beautiful" as a single, failed to make an impact on the British charts. It did, however, meet with success the next year, when released by Iris Williams.

Dame Cleo Laine, (born Clementine Dinah Bullock; 28 October 1927) is a British jazz and pop singer and an actress, noted for her scat singing and for her vocal range. Though her natural range is that of a contralto she is able to produce a "G above high C" giving her an overall compass of well over three octaves. She received Grammy nominations in the jazz, popular and classical music categories. She is the widow of jazz composer Sir John Dankworth.

Stanley Myers (6 October 1930 – 9 November 1993) was an English composer and conductor, who scored over sixty films and television series, working closely with filmmakers Nicolas Roeg, Jerzy Skolimowski and Volker Schlöndorff. He is best known for his guitar composition "Cavatina".