These variations use different times and different modes
and keys for each verse, and with
each instrument taking the tune in turn for each phrase.
The original tune has been used for various lyrics over the years;
this is one of them:
On Christmas night all Christians sing
To hear the news the angels bring.
News of great joy, news of great mirth,
News of our merciful King’s birth.
Then why should men on earth be so sad,
Since our Redeemer made us glad,
When from our sin he set us free,
All for to gain our liberty?