Operatoberfest!
Details
Maybe you like opera, maybe you like beer, you do like a party. Source/Filter have a night for us at Benny Boy Brewing: Live singing traditional, and all those drinking songs from operas/musicals. Plus Oktoberfest festivities from Lady Hosen primo oompah band, stein holding contest. $35 entry buys your first drink. But plenty more to be had.