Oslo being the first Opera House in the world to let people walk on the roof of the building. The foyer and the roof are also used for concerts as well as the three stages. Most great Norwegian authors have lived in Oslo for some period in their life. For instance, Nobel Prize-winning author Sigrid Undset grew up in Oslo, and described her life there in the autobiographical novel "Elleve år" (1934; translated as "The longest years"; New York 1971). The playwright Henrik Ibsen is probably the most famous Norwegian author. Ibsen wrote plays such as "Hedda Gabler", "Peer Gynt", "A
Peer Gynt Ginty", transferred the play to an Irish Civil War setting. It was staged at Dublin's Gate Theatre. In 1969, Broadway impresario Jacques Levy (who had previously directed the first version of "Oh! Calcutta!") commissioned The Byrds' Roger McGuinn to write the music for a pop (or country-rock) version of "Peer Gynt", to be titled "Gene Tryp". The play was apparently never completed, although, as of 2006, McGuinn was preparing a version for release. Several songs from the abortive show appeared on the Byrds' albums of 1970 and 1971. In March 1972 Jerry Heymann's adaptation, called "Mr. Gynt, Inc.", was performed