Freddie the Frog books and CDs bring musical concepts to life for young readers! Introduce pre- and early readers to fundamental music concepts in a fun and exciting way! Join Freddie and his friends on Treble Clef Island as they take adventurous journeys and learn about music on the way! Freddie the Frog and the Thump in the Night introduces the treble clef staff. Freddie the Frog and the Bass Clef Monster introduces the bass clef staff and nine bass clef notes. Freddie the Frog and the Mysterious Wahooooo teaches the difference between beat and rhythm. Each book in the series comes with a CD with story narration and sing-along songs! A fun, interactive way to bring music to lifebuy all 3 sets and save! Freddie the Frog and the Thump in the Night book/CD, hardcover, 40 pagesFreddie the Frog and the Bass Clef Monster book/CD, hardcover, 38 pages Freddie the Frog and the Mysterious Wahooooo book/CD, hardcover, 30 pages Ages: 4 and up