Jauchzet Gott in allen Landen, BWV 51

Bach entered this cantata in his Leipzig performance materials for the fifteenth Sunday after Trinity, 17 September 1730, and added the note et in ogni tempo — for any occasion — which suggests he expected to reuse it. It is scored for a single soprano, solo trumpet, strings and continuo, with no chorus at all, and the demands on both soloists go beyond anything else in his church music; who sang it in Leipzig has never been established. The closing Alleluia sets the voice and trumpet against each other in open competition.