Question: Unser Mund sei voll Lachens is a church cantata by a composer born in what year?
Context: Alles, was von Gott geboren (All that is born of God), BWV 80a, is a church cantata by Johann Sebastian Bach.  He composed it in Weimar for Oculi, the third Sunday in Lent, and first performed it on 24 March 1715 or 15 March 1716.  The music is lost, but Bach expanded on it in about 1730 to create his chorale cantata for Reformation Day, "Ein feste Burg ist unser Gott", BWV 80. Sei Lob und Ehr dem höchsten Gut (Praise and honour be to the highest good), BWV 117, is a church cantata by Johann Sebastian Bach.  He composed the chorale cantata in Leipzig between 1728 and 1731 for no specific occasion, based on the hymn by Johann Jacob Schütz. Johann Sebastian Bach composed the church cantata Jauchzet Gott in allen Landen ("Exult in God in every land" or "Shout for joy to God in all lands") BWV 51 , in Leipzig.  The work is Bach's only church cantata scored for a solo soprano and trumpet.  He composed it for general use ("ogni tempo)", in other words not for a particular date in the church calendar, although he used it for the 15th Sunday after Trinity: the first known performance was on 17 September 1730 in Leipzig.  The work may have been composed earlier, possibly for an occasion at the court of Christian, Duke of Saxe-Weissenfels, for whom Bach had composed the "Hunting Cantata" and the "Shepherd Cantata". Johann Sebastian Bach composed the church cantata Jesu, der du meine Seele (Jesus, You, who my soul), BWV 78 , is a church cantata of Johann Sebastian Bach.  He composed the chorale cantata in Leipzig for the 14th Sunday after Trinity and first performed it on 10 September 1724.  It is based on the hymn by Johann Rist. Jesu, nun sei gepreiset (Jesus, now be praised), BWV 41 , is a church cantata by Johann Sebastian Bach.  He composed the chorale cantata in Leipzig for New Year's Day and first performed it on 1 January 1725 as part of his second cantata cycle.  It is based on the hymn by Johannes Hermann (1591). Johann Sebastian Bach (31 March [O.S. 21 March] 1685 28 July 1750) was a German composer and musician of the Baroque period.  He is known for instrumental compositions such as the "Brandenburg Concertos" and the "Goldberg Variations", and vocal music such as the "St Matthew Passion" and the Mass in B minor.  Since the 19th-century Bach Revival he has been generally regarded as one of the greatest composers of all time. Gelobet sei der Herr, mein Gott (Praised be the Lord, my God), BWV 129, is a church cantata by Johann Sebastian Bach.  It is a chorale cantata performed on Trinity Sunday 8 June 1727 in Leipzig.  Rediscovery of the printed libretto of the cantata in the first decade of the 21st century led to a re-appraisal of prior assumptions regarding the early performance chronology of a few cantatas, including this one. Widerstehe doch der Sünde (Just resist sin), BWV 54, is a church cantata by Johann Sebastian Bach.  He composed the solo cantata for alto in Weimar between 1711 and 1714, and probably performed it on the seventh Sunday after Trinity, 15 July 1714.  It is Bach's first extant church cantata for a solo voice. Johann Sebastian Bach composed the church cantata Herz und Mund und Tat und Leben (Heart and mouth and deed and life), BWV 147 , in 1723 during his first year as "Thomaskantor", the director of church music in Leipzig.  His cantata is part of his first cantata cycle there and was written for the Marian feast of the Visitation on 2 July, which commemorates Mary's visit to Elizabeth as narrated in the Gospel of Luke in the prescribed reading for the feast day.  Bach based the music on his earlier cantata BWV 147a, written originally in Weimar in 1716 for Advent.  He expanded the Advent cantata in six movements to ten movements in two parts in the new work.  While the text of the Advent cantata was written by the Weimar court poet Salomo Franck, the librettist of the adapted version who added several recitatives is anonymous. Unser Mund sei voll Lachens (May our mouth be full of laughter), BWV 110 , is a church cantata by Johann Sebastian Bach.  He composed the Christmas cantata in Leipzig for Christmas Day and first performed it on 25 December 1725.
Answer: 1685