oratorio as a musical form

An oratorio is a large musical composition for orchestra, choir, and soloists that tells a religious or spiritual story without acting or staging, unlike opera. It often features dramatic narration set to music, combining expressive singing with orchestral support. Originating in the 17th century, oratorios are typically performed in concert settings, emphasizing vocal and musical storytelling. Notable examples include Handel’s "Messiah," which depicts biblical themes through powerful choral and solo sections. Overall, an oratorio is a concert-length musical work that communicates a meaningful story or message through intricate vocal and instrumental artistry.