Opera house electronic libretto systems have begun to be used in some opera houses, including New York's Metropolitan Opera, Milan's La Scala, and the Crosby Theatre of The Santa Fe Opera, which provide two lines of text on individual screens attached to the backs of the seats so as to not interfere with the visual aspects of the performance. A subtle type of sound reinforcement called acoustic enhancement is used in some opera houses. Acoustic enhancement systems help give a more even sound in the hall and prevent "dead spots" in the audience seating area by "...augment[ing] a hall's intrinsic acoustic characteristics."
Garden City Opera House Garden City." It is a two-story wood frame building on a concrete foundation with a gambrel roof. Garden City Opera House The Garden City Opera House, at 1st and Railroad Streets in Garden City, South Dakota, was built in 1908. It was listed on the National Register of Historic Places in 1988. It was deemed "significant in the area of Entertainment/Recreation, because for eighty years it has served as the community's only auditorium and large central meeting place. Since its construction in 1908, it has been the site of innumerable public functions including plays, dances, banquets, assemblies, fraternal meetings, and