These are probably well-known in some circles (plenty of youtube videos available), but I think even those fluent in German struggled with this one.
I remain here by Your cradle,
I believe this it the tune they used Sunday evening.
I am more familiar with this tune, which you might know as "The Day Is Surely Drawing Near." It's an interesting mix for me, a "baby Jesus" text with an "end times" tune. It places one both at the manger and at the second coming. His incarnation and His return meet up this way.