 The second part ("Tristes erant apostoli") is incorporated into the Common of Apostles and Evangelists for paschal time at the first and second Vespers and Matins.It is sung in the Phrygian mode, in a melody found in the "Vesperale Romanum".The third part ("Claro paschali gaudio") was incorporated into Lauds in the Common of Apostles in paschal time.