Whilst I was in Chateaubriant, I noticed these Christmas concerts being advertised at the Church.
One Concert is at the Church of St Madeline in Pouancé on the 14 December at 3.30 pm and the other one is at the Church of St Nicolas in Chateaubriant on Sunday 21 December, also at 3.30 pm.
I believe that there are going to be two performances, one from a group from Pouancé and the other from Chateaubriant.
As far as I know, entry is Free, and I would imagine they will probably ask for Donations at the end of the event.