The Song by Letter series includes the melody in easy-to-read large print. The notes are marked by letters which match the notes marked on the Jumbie Jam. Children's favorites include: Twinkle, Twinkle Little Star; Mary Had a Little Lamb; Old McDonald Had a Farm; This Old Man; Row, Row, Row Your Boat; Doe, a Deer; Chopsticks and When the Saints Go Marching In. Christmas favorites include: Jingle Bells; Up on the House Top; Deck the Halls; Do You Hear What I Hear; Rudolph the Red-Nosed Reindeer; Frosty the Snowman; Joy to the World; and Silent Night.