General Terms:
* Choral work: This is a very general term that encompasses any piece written for a choir.
* Choral composition: This is another general term that emphasizes the piece's musical structure and composition.
Specific Terms:
* Anthem: A sacred choral piece, often sung in a church service.
* Cantata: A multi-movement choral work, often with soloists and orchestra.
* Motet: A polyphonic choral piece, typically a cappella.
* Madrigal: A polyphonic choral piece in a light, secular style.
* Chorale: A hymn-like choral piece, often with simple harmonies.
* Mass: A liturgical work for choir and orchestra, typically set to the Roman Catholic Mass.
* Oratorio: A large-scale choral work, similar to an opera, but without costumes or stage action.
* Choral symphony: A symphony-like work with a prominent choral part.
Other Terms:
* Choir song: A simple piece for choir, often used in school settings.
* Choral ballad: A ballad-like piece for choir, often with a narrative element.
* Choral suite: A collection of shorter pieces for choir, usually related in some way.
* Choral arrangement: A new arrangement of a pre-existing piece for choir.
The specific term used to describe a choral piece will depend on its musical style, genre, and historical context.