The Pout Pout Fish in the Big Big Dark by Diessen
I went to a workshop where someone had put the Pout Pout Fish to music and I was using her arrangement in my classroom. Then I found the next book, Pout Pout Fish in the Big Big Dark. Of course, I had to write a song to go with that one as well, plus instruments. We learn the song first, and sing on the page turns. Then we add the instruments. In this book, the words to the song change towards the end, so we adjust our song to go with the book.
Mallets 1 - Glockenspiel
Mallets 2 - Alto Xylophone
Mallets 3 - Bass Xylophone