(Easy Piano Songbook). If you've been wishing to play the music from your favorite new Disney musical, this souvenir songbook is just what you need! It features full-color scenes and seven songs from the soundtrack arranged for easy piano with lyrics. Songs include: At All Costs * I'm a Star * Knowing What I Know Now * This Is the Thanks I Get?! * This Wish * Welcome to Rosas * A Wish Worth Making.