Although Ons is gheboren een kindekijn (Puer nobis nascitur)
had its origins in a plainsong melody, somewhere along the way it became a Dutch folk-song, hence its jaunty dance-like character. Only in the last of its four verses does the melody move to the middle part, with energetic cross-rhythms against the flow of the tune. In many sets of variations the number of parts increases with each movement, although in this case the second verse is in two parts while the others are in three.
from notes by Stephen Westrop © 2003