July 22: Maritime Performance Series presents DRAMTREEO: An acoustic folk group based in Norfolk, Virginia, featuring the traditional music of North America, the British Isles, and the seven seas, in an electric mixture of songs that reflect the joy and sorrows, the hard work and the hard luck, the high spirits and low humor, of ordinary people around the world. Auditorium at 7 p.m. $5 per person charged at the door; wine, beer, and light bites available for sale.