Discover Musical Instruments Discover the piano in this simple and engaging book for curious kids. Beginning level texts introduce young readers to common musical instruments. Each book in this series explains how a musical instrument works and how it is played. Simple sentences encourage kids to learn more about music and to learn to play themselves. Sample text: The piano has 88 keys. Pianos can make low and high sounds. Each book in this Discover Musical Instruments features brilliant photos to aid comprehension, a word list and additional features for teachers and caregivers.