The Pirates of Penzance; or, The Slave of Duty is the fifth Gilbert and Sullivan collaboration, and premiered in New York City on 31 December 1879. It made its London debut on 3 April 1880, and was warmly received with the critical consensus being that it represented a significant advance on the duo’s earlier works. The Herald in New York suggested that ‘the new work is in every respect superior to the Pinafore, the text more humorous, the music more elegant and more...