1 January Calennig: the Welsh tradition of giving gifts and money on New Year's Day.
Calennig article from Wikipedia     https://en.wikipedia.org/wiki/Calennig

CALENNIG   - Calan       https://www.youtube.com/watch?v=p-n7vh6lqQ0&list=RDp-n7vh6lqQ0&start_radio=1
Various other recordings of Calenigg on YouTube     https://www.youtube.com/results?search_query=Calennig+song