The City of Medford’s Condon Shell Summer Concert series concludes with Kier Byrnes and the Kettle Burners performing. The Kettle Burners play accordion-infused music from Celtic and polkas to folk and country rock. Winners of a New England Music Award for Americana Act of the Year, the Kettle Burners have performed at multiple festivals and even shared some bills with a few national acts (Willie Nelson, Old Crow Medicine Show, Hank Williams Jr., John Mellencamp, and others). In addition to Byrnes, the Kettle Burners are Jason McGorty, Monica Sager, Joe Miller, Dan DiBacco and Brian Lilienthal. Bring a chair or blanket and a picnic, or stop by the adjacent Medford Farmers Market to grab some food.