' (Glide, O sparkling waves and murmur softly), BWV 206, is a secular cantata composed by Johann Sebastian Bach in Leipzig and first performed on 7 October 1736.
Bach composed this cantata for the birthday of Augustus III of Poland and Elector of Saxony. It was first performed in Leipzig, Saxony, on 7 October 1736. A second performance took place on 3 August 1740.
The librettist of the work is unknown, but was likely Picander. The cantata is counted among the works Bach wrote for celebrations of Leipzig University, Festmusiken zu Leipziger Universitätsfeiern.
The cantata features four solo vocal parts, representing rivers: (soprano), (alto), (tenor), and (bass). The cantata is also scored for four-part choir, three flutes, two oboes, two oboes d'amore, three trumpets, timpani, 1st and 2nd violins, violas, and basso continuo.
It has eleven movements: