Listen to What Child is This (Christmas Lullaby Songs) online. What Child is This (Christmas Lullaby Songs) is an Unknown language song and is sung by Instrumental Christmas Music. What Child is This (Christmas Lullaby Songs), from the album Christmas Wishes & Carols Under the Christmas Tree, was released in the year 2014. The duration of the song is 4:10. Download Unknown songs online from JioSaavn.