9(Personality). A dozen songs from the 2017 holiday album from these YouTube video sensations featuring piano solo arrangements with a separate pull-out cello part. Songs include: Angels from the Realms of Glory * O Holy Night/Ave Maria * Mary, Did You Know?/Corelli Christmas Concerto * Ode to Joy to the World * What Child Is This * Gloria!/Hark! the Herald Angels Sing * O Little One Sweet * The Little Drummer Boy/Do You Hear What I Hear * I Saw Three Ships * Silent Night * The Manger * The Sweetest Gift.