In Ada’s Violin (Simon and Schuster, $17.99), Susan Hood tells the powerful story of the Recycled Orchestra of Cateura, Paraguay. Cateura is a trash dump, with thousands of adults and children working as trash-pickers and “recyclers.” It was there that Favio Chávez, an environmental engineer, started a music program for kids and enlisted a recycling crew to create instruments out of scraps of all sorts. See Ada Ríos, one of the first children to join the program, and the Orchestra achieve success with tours, YouTube videos, a 60 Minutes feature, and a documentary. Sally Wern Comport uses pencil and acrylic for her two-page narrative illustrations, also collaging scraps of trash to symbolize Ada’s surroundings. A portion of the proceeds from the sale of the book will be donated to the Orchestra. Ages 4-8.