It is likely that he revised it further in the 1740s because he wrote a new score .
As the music of the 1727 version is lost , the timing of Bach 's revisions to the wedding cantata is not known .
It is likely that Bach revised it further in the 1740s because Bach wrote a new score .
As the music of the 1727 version is lost , the timing of Bach 's revisions to the wedding cantata is not known .