So is this version by Spielleut (with mp3PRO):

12. Rabenballade
(melody originally Breton):
This song in its present form is the German version of the English ballad "The three ravens" by T. Ravenscroft (1611), but we used the melody of the Scottish version "The twa corbies", which was originally known as 'Al Alarc'h' (the swan) in Brittany.
(a capella)

~Masato