I know this is a bit tenuous but, when I was at secondary school in Bungay Suffolk, I sang in a choir from the MAYC youth club at The Royal Albert Hall. We sang on the Saturday and Sunday of a special week end thing they had, and the song was, "Go tell it on the mountain"
I still play and sing but strangely enough the quality of the venues has gone steeply downhill from there, and the choice of material is also different. Next week, some forty years later, I am playing at a beer festival in Dover. Hey ho.