The annual Mystic Music Fest, a free, family friendly afternoon of live music, returns to the Condon Shell for its 13th edition. Presented by Robar Massage Therapy Services and Medford resident Russ Robar, this year’s bands will be Tilt-a-Whirl, the Spittin’ Vinnies, and the Porter Squares. Medford Brewing Company will be on hand with a beer garden, and RMTS will provide chair massage.