What nationality was the person who wrote the music for Soft Flowing Avon?
Thomas Arne Thomas Augustine Arne ( ; 12 March 1710, London – 5 March 1778, London) was an English composer, best known for the patriotic song "Rule Britannia". He also wrote a version of "God Save the King", which became the British national anthem, and the song "A-Hunting We Will Go". Arne was the leading British theatre composer of the 18th century, working at Drury Lane and Covent Garden.
Imogen Holst Imogen Clare Holst CBE (12 April 1907 – 9 March 1984) was an English composer, arranger, conductor, teacher and festival administrator. The only child of the composer Gustav Holst, she is particularly known for her educational work at Dartington Hall in the 1940s, and for her 20 years as joint artistic director of the Aldeburgh Festival. In addition to composing music, she wrote composer biographies, much educational material, and several books on the life and works of her father.