That is the name of the Christmas concerts festival the council of Mafra organizes every year.
And this year our choir was invited. When I heard Mafra I thought it was the city Mafra, until one of our members asked: Do we know which is the village where we are going to sing?
The concerts actually take place in small villages, where the church sometimes only opens for the occasion. Ours was a very small church dating from the 13th century but recently renovated. I could have stayed a whole afternoon there just drawing the tiles.