"The 'Conversion of St. Paul,' performed at Rome, 1440, as described by Sulpicius, has been erroneously called the first opera, or musical drama. 'Abram et Isaac suo Figliuolo,' a sacred drama (_azione sacra_), 'showing how Abraham was commanded by God to sacrifice his son Isaac on the mountain,' was performed in the Church of St. Mary Magdalen in Florence, 1449. Another on the same subject, called 'Abraham and Sarah,' 'containing the good life of their son Isaac, and the bad conduct of Ishmael, the son of his handmaid, and how they were turned out of the house,' was printed in 1556; 'Abel e Caino,' and 'Samson,' 1554; 'The Prodigal Son,' 1565; and 'La Commedia Spirituale dell' Anima' ('The Spiritual Comedy of the Soul'), printed at Siena, without date, in which there are near thirty personifications, besides Saint Paul, Saint John Chrysostom, two little boys who repeat a kind of prelude, and the announcing angel, who always speaks the prologue in these old mysteries. He is called _l'angelo che nunzia_, and his figure is almost always given in a wooden cut on the title-page of printed copies. Here, among the interlocutors, we have God the Father, Michael the archangel, a chorus of angels, the Human Soul with her guardian angel, memory, intellect, free-will, faith, hope, charity, reason, prudence, temperance, fortitude, justice, mercy, poverty, patience, and humility; with hatred, infidelity, despair, sensuality, a chorus of demons, and the devil. None of these mysteries are totally without music, as there are choruses and _laudi_, or hymns, that are sung in them all, and sometimes there was playing on instruments between the acts. In a play written by Damiano and printed at Siena, 1519, according to Crescimbeni, at the beginning of every act there was an octave stanza, which was sung to the sound of the lyra viol by a personage called Orpheus, who was solely retained for that purpose; at other times a madrigal was sung between the acts, after the manner of a chorus."