Instrumental Duet,Piano Flute,Instrumental Duet,Piano - Digital Download SKU: A0.503797 By Justin Bieber Duet With Mariah Carey, Lady Antebellum, Mariah Carey, and Michael Buble. By Mariah Carey and Walter Afanasieff. Arranged by Catia Lee. Children,Christmas,Holiday,Pop,Traditional. Score and parts. 10 pages. Published by Catia Lee (A0.503797). All I want for Christmas is you for Flute and Piano Duet. Easy to play. With separated sheet music. With Chords.