What is antiphonal?

Antiphonal refers to a type of musical composition or performance in which two or more groups of singers or instrumentalists alternate in a call-and-response style. It originated in ancient religious practices and was popularized in medieval European church music. In antiphonal singing, the choir or musicians are divided into two or more groups stationed at different locations in the church or concert hall. These groups then sing or play in turn, creating an echoing effect that adds depth and richness to the music. Antiphonal music is still used today in many religious and secular contexts, and is often seen as a powerful and emotive form of musical expression.