The All Good Music Festival has added some additional performers to its already impressive line-up. Dark Star Orchestra, Donna The Buffalo, Marco Benevento, J Roddy Walston and the Business, The Werks and a Rex Jam Hosted By Matt Butler and Everyone Orchestra will join the bill. The festival already has confirmed such performers as: Furthur, Primus, moe., Umphrey’s McGee, STS9, Yonder Mountain String Band, Keller Williams, Pretty Lights, Galactic, John Butler Trio, Toots and the Maytals, Karl Denson’s Tiny Universe, JJ Grey & Mofro, The Bridge, The Infamous Stringdusters, Papadosio and Toubab Krewe. Tickets are on sale for this 15th annual installment of the event which will return to Masontown, WV’s Marvin’s Mountaintop from July 14-17.