In music, a chorale concerto is a short sacred composition for one or more voices and instruments, principally from the very early German Baroque era.
The concertato style was brought north across the Alps by composers such as Hans Leo Hassler and Heinrich Schütz, who studied in Venice with the originators of the style, the Venetian School composers including Giovanni Gabrieli.
Hassler, Schütz and others then applied their newly learned techniques to the German chorale to create a form roughly equivalent in expression and purpose to the motet which in the preceding Renaissance era was used in Roman Catholic context.
The Protestant Reformation made necessary the development of new genres of music, most of which were related in form and function to equivalent genres in Roman Catholic parts of Europe, but which avoided the use of Gregorian Chant, using the chorale instead (many chorale tunes of which were derived directly from chant, but fitted with words in German).
Bach, evolved out of the chorale concerto, and became a popular liturgical form in Germany for more than a hundred years.