Keytronic had this to say:
This is now the result featuring my Daughter Frida and Maike (a very good Friend).
I believe this is a wonderful christmas song and my second self composed song ever.
Take a listen. I'm sure that you will want to add this to your holiday collection. It stands out among all the great tunes being posted to ccMixter.org this holiday season.
keytronic -Der Traum Unterm Baum (feat. Maike und Frida)