1. Singing is done by the individual as part of the lifeway and is not done for money or for hire or out of any sense of obligation.

2. singing is done by the individual in informal spaces and is not scheduled.

I think that the music sung does not matter.

Folk music however is different as it relates to song history and evolution.

Learning to play or sing has no bearing. Doesn't matter how one learns the important dimension is that you do it as a lifeway, it is your tradition. Not even a hobby as hobby is something extra. Performnce also extends too far. You are traditional when you do it whenever.

Conrad