No musical partnership has enjoyed greater success during its time span, or bequeathed a more powerful and enduring legacy, than that of Gilbert and Sullivan in the later nineteenth century. Even before their first successful collaboration in 1875, both William Schwenk Gilbert (1836-1911) and Arthur Seymour Sullivan (1842-1900) had already forged considerable reputations for themselves. Thereafter, between 1877 and 1896, Gilbert wrote the librettos,...