Oratorio
An oratorio (Italian pronunciation: [oraˈtɔːrjo]) is a musical composition with dramatic or narrative text for choir, soloists and orchestra or other ensemble.
Like most operas, an oratorio includes the use of a choir, soloists, an instrumental ensemble, various distinguishable characters (e.g. soloists), and arias. However, opera is musical theatre, and typically involves significant theatrical s…