The Boulder Bach Festival Fellowship artists perform a thrilling, wild and passionate program of Italian music. This free-of-charge event features Boulder’s most dynamic young professional musicians, artists exploring the fascinating sound world of Baroque period instruments, played with insight and imagination. The seven-piece ensemble, along with Artistic Director Zachary Carrettín, will engage the audience with performances, stories and anecdotes; 2:30 p.m., The Nomad Playhouse, 1410 Quince Ave., Boulder; free; 720-507-5052, facebook.com/events/394259391325070. Graduate Program Open House— Interested in pursuing a graduate degree at CU? Visit the Glenn Miller Ballroom to speak with graduate program representatives who will be available to answer questions about CU’s graduate programs, research opportunities, funding and more; 10 a.m., University of Colorado Boulder, Regent Drive at Broadway, Boulder; free; 303-735-7187, bit.ly/gradopenhouse19. Boulder Tuesday Thursday Hikers— Carpool to trailheads and reimburse the drivers for expenses. Bring your lunch, water, snacks and be prepared for all weather conditions; 9 a.m., North Boulder Park, 2848 9th St., Boulder; free; 303-910-...