Chorale
Chorale is a term in church music that refers to a hymn tune sung by congregations in Protestant worship, especially within the German Lutheran tradition. It also designates musical settings built on that tune, ranging from simple four-part harmonizations to elaborate organ or choral works. In its broad sense, a chorale is any composition that uses a chorale melody as its foundation.
Origins and characteristics: Chorales emerged in the 16th-century Reformation in the German-speaking lands, as congregational singing
Development in the Baroque period: In later centuries, chorales became a central material for polyphonic writing.
Modern usage and significance: Chorales remain a core element of Lutheran and other Protestant worship services