I took part as a musician to a "new year concert", as you can see in Vienna each first of January.
An elder explained me that I was a support of the world of the Devil because celebrating the new year was an association with demons.
I tried to explained that it was the same that an "autumn concert" or un "summer concert", where nobody was "celebrating" autumn ou summer... It was just the "moment of new year"... He answered I would be disfellowship if I would participate again. It wasn't necessary... I left them all 3 days after and was never back again.