The Anhang II of Schmieder's catalogue of Bach's composition contains the spurious works. According to the manuscript sources they were composed by Bach, but there is doubt the authorship is correctly indicated. In the case of Anh. II 60 the doubt is, in my opinion, justified. It is a nice piece, that aptly expresses the mood of the choral. It just does not feel like a genuine Bach work. The harmonic development is too plain and the motivic treatment of the left hand part too simplistic. It is probably not a composition by Bach at all.