A large-scale musical composition for orchestra, choir, and soloists, typically based on a religious theme and performed without the use of costumes, scenery, or action.
The choir performed Handel's oratorio 'Messiah' to a packed audience at the cathedral.
oratorioadjective
Of, relating to, or characteristic of an oratorio or the oratorio style of music.
The festival will feature an oratorio concert with a full orchestra and choir.