About this Seminar We have used a photograph of a wall of one of the most fascinating churches in Rome -Santa Maria Antiqua- as an illustration for the announcement of the course about Old Roman Chant. This is no coincidence. Not only is it one of the oldest churches in the eternal city, but its walls bear witness to the first centuries of Roman liturgy and the various influences and changes of the Rome of the first millennium. It also reflects the time of the Greek influence in Rome and its liturgy, as well as the subsequent stages that followed. This changing vitality comes to an abrupt halt in 847 when an earthquake seriously damages the church which ceases to be used and, from the 11th century, is buried for more than a millennium. When it was discovered in the 20th century, one of the most striking aspects which attracts the attention is the image that we reproduce, in which we can see the superimposed remains of different layers of paintings from the different periods that ...