Formerly Treehouse Productions, Fortissimo Studio (1533 Folly Road) is hosting Rock ‘n’ Roots, a monthly live recording session that’s open to the public. On Thurs. Nov. 20, Rock ‘n’ Roots will feature SUSTO and Jordan Igoe, and food from Swig and Swine will be available for purchase. The event is BYOB, and only 100 spaces are available. Tickets are $5 in advance and $10 at the door. For tickets and future event details, go to fortissimostudio.com.