The______is an art and musical form in which singer and musicians perform a dramatic work mainly sung and accompanied by an orchestra or a small musical ensemble
OPERA — is a dramatic presentation which is set to music, they use music to convey an entire story/plot.
it is basically an art form that tells a story through music and singing. though, unlike a musical, opera singers do not use microphones to amplify their voices, and the music, played by an orchresta, is completely live.