Tristan und Isolde

Tristan und Isolde (Tristan and Isolde, or Tristan and Isolda, or Tristran and Ysolt) is an opera, or music drama, in three acts by Richard Wagner to a German libretto by the composer, based largely on the romance by Gottfried von Straßburg.

Quotes

 * Wagner Tristan opening.png
 * note: Tristan chord