Hennessy wrote extensively for the piano, and also for many chamber music instrumentations, and a number of songs. As yet, no orchestral scores by Hennessy have been identified, but these may explain the missing opus numbers in his work-list, from which, so far, only small-scale published scores are known. According to E.N. Waters (1955), the Irish-American composer and conductor Victor Herbert conducted works on 23 March 1913 at the Carnegie Hall, New York: 'Herbert conducted music by William V. Wallace, Charles V. Stanford, Swan Hennessy, and himself.'[7]
From the time Hennessy lived in Paris, his music was largely published by E. Demets and from 1921 by Éditions Max Eschig (who had taken over Demets). (Hide extended text)...(Read all)