The antiphonary conserved in the archives of Benedictine abbey at Monte Cassino is one of the oldest witnesses to liturgical office chant from 12th-century Southern Italy, and contains some elements from the local tradition of Beneventan chant.

This manuscript, written in Beneventan notation, also contains several fine miniatures.

Montecassino, Archivio dell'Abbazia, ms. 542. Antiphonaire du 12ème siècle - edition prepared by Katarina Livljanić. Editions de Solesmes.