Taking a break from translations, here is an interesting melody I found in Kümmerle. It is an old alternate melody for "O Jesus Christ, Thy Manger Is." Perhaps it might find its way again to some of the other hymns that use this same meter.
The melody is by Peter Sohren, and found in his edition of Praxis Pietatis Melica (Frankfurt, 1668) as well as in his hymnal Musikalisches Vorschmack (1683). Here it is transposed from G mix. to E mix. to avoid the high f and g: