Opera house as they sing. This occurs in the Met's productions of operas such as "Aida" and "Tales of Hoffman". London's Royal Opera House, which was remodeled in the late 1990s, retained the original 1858 auditorium at its core, but added completely new backstage and wing spaces as well as an additional performance space and public areas. Much the same happened in the remodeling of Milan's La Scala opera house between 2002 and 2004. Although stage, lighting and other production aspects of opera houses often make use of the latest technology, traditional opera houses have not used sound reinforcement systems with microphones
Lisa Gasteen National Opera School musical faculty members included Lisa Gasteen AO, John Fisher, Giovanni Reggioli, Margaret Baker-Genovesi, Sharolyn Kimmorley AM and Jill Stoll. UK-based psychotherapist and expert on psychogenic dysphonia (voice problems due to emotional mismanagement) Phiroze Neemuchwala was amongst the members of the non-musical faculty. Faculty members have been associated with leading international and national opera companies such as the Metropolitan Opera, the Royal Opera, Covent Garden, Teatro alla Scala, Opera Australia, Teatro la Fenice, New York City Opera, Washington National Opera, Welsh National Opera, the Théâtre de la Monnaie, De Nederlandse Opera and Opera Queensland, as well as the Rossini Opera Festival,