All Are Welcome by Alexandra Penfold and Suzanne Kaufman, published by Alfred A. Knopf. This book was the book for Read for America one year, and the librarian gave me a copy. Mallets 1 are Glockenspiels, Mallets 2 are Alto xylophones and Mallets 3 are the Bass Xylophone, although you could use whatever instruments you have that fit. You could also add any non-pitched percussion to play the beat, or a rhythm obstinate.