Grammy Award Winning singer-songwriter Patty Griffin will kickoff the 40th Anniversary season at Prescott Park in Portsmouth. Known for her stripped-down songwriting style centered around the folk music genre, her songs have been covered by a host of musicians. In 2007, Griffin received the Americana Music Association's Artist of the Year award and her album Children Running Through won Best Album. In 2011, her Downtown Church won the Grammy Award for Best Traditional Gospel Album. Tickets are $8-10.