Airs Monday, August 20 at 11:00 a.m. Bang on a Can’s Summer Music Festival focuses on new and adventurous contemporary music. For three weeks each summer, performers and composers alike head to the industrial heart of the Berkshires collaborate on, create and perform new music pieces. The festival is hosted at the Massachusetts Musuem of Contemporary Art and culminates with an incredible six hour concert in the museum. Known for its spirit of originality and experimentation, the festival concentrates on developing talented young musicians who are not afraid to play outside the box. This year’s festival included classes in improvisation techniques, an Orchestra of Original Instruments by Mark Stewart and an African dancing and drumming rhythm seminar by Nani Agbeli. Guest faculty over the years has included Steve Reich, Louis Andriessen and Meredith Monk.