On Wednesdays, July 11, 18 and 25, at 4:30 p.m., children ages 4 to 12 are invited to try out some musical instruments at the Southwest Library instrument petting zoo. On July 11, there is a focus on keyboards; July 18, percussion; and July 25, guitars. Children under 9 must be accompanied by a caregiver. Southwest Library is at 900 Wesley Pl. SW. Questions? Call 202-724-4691. dclibrary.org/southwest.