Are you thinking of a Cantata? These can be performed with or without scenery, costumes and acting. Earlier ones were acted but as they developed, they were just performed without acting.
That describes an oratorio.
Concerto
Yes, the ritornello principle is based on alternating sections from the soloist (or soloists) and the full orchestra.
Webster defines a concerto as a piece for one or more soloists and an orchestra with three contrasting movements.
Only in the mouths of the vocal soloists, if they were singing along with the orchestra.
no
An oratorio is a musical composition for choir, soloists, and orchestra that tells a story often of a dramatic or religious nature. It typically combines vocal and instrumental elements to convey the narrative.
Concerto
You could be describing opera or an operetta or a work in musical theatre.
An oratorio is a large musical composition comprised of an orchestra, a choir and soloists. Similar to an Opera in the story telling, but different in it is just music not singing. Baroque references the time frame of 1600-1750 when the oratorio was written.
Yes, the ritornello principle is based on alternating sections from the soloist (or soloists) and the full orchestra.
Messiah is the most famous oratorio composed by the Baroque composer, Handel. It does not feature a single set of lyrics or a firm beat (riff) as in popular music. It is composed for the Baroque orchestra, choir and vocal soloists. It is based on biblical text.
Spring from The Four Seasons is preformed by a string orchestra with one solo violin.
Webster defines a concerto as a piece for one or more soloists and an orchestra with three contrasting movements.
Only in the mouths of the vocal soloists, if they were singing along with the orchestra.
Zagreb Soloists was created in 1953.
A concertino, or small group of soloists (usually 2 violins, a harpsichord, and a cello), contrasts with the cocerto grosso, which is the whole string orchestra and its ripieno players.
no