Sir Charles Hubert Hastings Parry was a writer, composer, and teacher. He was extremely influential in the revival of English music at the end of the 19th century. Among his best known choral works is Blest Pair of Sirens (1887) for chorus and orchestra. His unison song Jerusalem (1916), a setting of words from William Blake's Milton, became almost a second national anthem during and after World War I. His other works include five symphonies, oratorios, Symphonic Variations, chorale preludes for organ, motets, church anthems, and many songs. Read more: Wikipedia article.