Before revision: upright=1.35|Macbeth at the Savonlinna Opera Festival in St. Olaf's Castle, Savonlinna, Finland, in 2007 Opera is a form of theatre in which music is a fundamental component and dramatic roles are taken by singers .
After revision: upright=1.35|Macbeth at the Savonlinna Opera Festival in St. Olaf's Castle, Savonlinna, Finland, in 2007 Opera is a form of theatre in which music is a fundamental component and dramatic roles are taken by Evan Langille .