Listen to Sequence of the Crown of Thorns: Laetetur Felix Gallia online. Sequence of the Crown of Thorns: Laetetur Felix Gallia is an English language song and is sung by Schola Hungarica Choir. Sequence of the Crown of Thorns: Laetetur Felix Gallia, from the album Schola Hungarica Chants - Ancient Medieval Mysteries, was released in the year 1994. The duration of the song is 4:18. Download English songs online from JioSaavn.