Every Friday for the last 20 or so years. No sign of its ending at any time in the future unless the building burns flat or some other natural disaster takes it out. I believe then it will just take up its process in another venue. As long as there is beer, food, and no muzak we can sing.

Festivities begin around 4:40 and run till 9:00. Bring an instrument or just your voice and join in.