The Learning Groove's music was created by the author (Eric Litwin) and music producer (Michael Levine) of the first four NY Times bestselling Pete The Cat picture books. Perfectly Purple is an amazing collection of classic children's songs & TLG originals that are perfectly suited for use in Parent & Child Music Classes, preschool through 2nd grade & for families at home. Perfectly Purple features the piano and includes classics such as La Bamba, Three Little Pigs, Four Little Ducks and more!