The Jazz Man by Mary Hays Weik
Small Trade paperback edition is Like New and a Newbery Honor Book. Woodcut illustrations by Ann Grifalconti on each of the 42 pages. Set during the Harlem Renaissance, a young boy is mesmerized by the neighbor across the courtyard who he watches through the window. Everybody's windows are open during the summer and the music transports young Zeke's worries.