Bach Cantata 35 is set to an early cantata poem by Lehms, first published in 1711. Because Bach seldom set older poems it is possible that parts of this work were earlier than the first recorded Leipzig performance in the 1720's. The work has two large concerto movements for organ and orchestra. These movements were presumably from a lost keyboard concerto and may have also been originally part of a violin concerto. The whole cantata leans heavily on the organ, for the second of the three arias is also for solo organ.The whole cantata is of a serious, even sober, cast. The organ music is of particular complexity. Bach wrote more solo cantatas for alto than any other voice type. Certainly this one is the most crabbed and thorny, but also one of the most ambitious.