The roman gradual on the Gregorian notes. Containing the masses for all Sundays throughout the year, in the following manner. Part the first. The introits, or Beginnings of the Mass, the Graduals, Alleluias, and Tracts after the Epistles, with the Sequenc

Roman gradual on the Gregorian notes. Containing the masses for all Sundays throughout the year, in the following manner. Part the first. The introits, or Beginnings of the Mass, the Graduals, Alleluias, and Tracts after the Epistles, with the Sequenc (Online)