Live Music Smell the Freshgrass! WEXT | By WEXT Published September 6, 2018 at 12:19 PM EDT LinkedIn Email Agency Freshgrass Festival takes place at Mass MoCA each September. This year, the Festival is 9/14-16. We have passes for Sunday and we want to give them to you.For more info, including the line-up, swing by the Freshgrass website.