Two of the most influential works of the Western nineteenth century were completed in 1859: Charles Darwin's "The Origin of Species" and Richard Wagner's opera "Tristan and Isolde." Although created within very different cultural traditions, these works show some striking similarities: both brought about a critical, long-lasting debate and caused…

There is a long history of debate over what opera is. Since it's more or less formal beginning in the sixteenth century as a reconstruction of ancient drama, opera as an art form has been controversial. The received understanding--emphasized by the genre's founders and in periodic efforts at reforming the standards of composition and…