Listen to In Dulci Iubilo online. In Dulci Iubilo is an English language song and is sung by Capella Duriensis. In Dulci Iubilo, from the album Capella Duriensis - Western Medieval Carols & Songs of the Eastern Orthodox Church, was released in the year 2013. The duration of the song is 5:59. Download English songs online from JioSaavn.