Great American Beer Hall presents an Oktoberfest season performance by the Oom Pa Pahs, which have been playing beer garden music for 25 years. Consisting of members of the Hot Tamale Brass Band, the group plays German oom pah music in the Boston area for Oktoberfest celebrations and special events in the New England area. Though mainly an instrumental group, they also sing some rousing Bavarian choruses and invite audience members to have fun and sing along.