Yolonda’s Genius by Carol Fenner (1997)

Paperback in Very Good (VG) condition. Looks near new. 

Fifth grader Yolonda is determined to prove that her younger brother is not a slow learner but a true musical genius in this sweet and inspirational Newbery Honor Book.Yolanda is smart, tough, and big for her age. Back in Chicago where they used to live, everyone knew better than to mess with her or her little brother, Andrew. Andrew doesn’t talk very much and he can’t read, but he can create unbelievable music on the old harmonica their father left him.When Yolanda reads the definition of “genius” in the dictionary, she knows it describes Andrew, and she’s determined to convince the world, especially their mother, of Andrew’s gift. Then one day when Yolanda’s back is turned, the unthinkable happens, and the music stops. Now Yolanda’s mission is more important than ever. How can she open people’s eyes to Andrew’s talent and help him find the music again?