Adémar de Chabannes
Adémar was born at Chabannes, a village in today's Haute-Vienne département of France. Educated at the Abbey Saint-Martial de Limoges, he passed his life as a monk, both there and at the monastery of Saint-Cybard at Angoulême. Adémar died around 1034, most probably at Jerusalem, where he had gone on a pilgrimage.
When Adémar joined the Abbey Saint Martial of Limoges, he was educated by his uncle Roger de Chabannes, cantor of the Abbey between 1010 until his death in 1025. Adémar learnt kalligraphy, to read, to compose and to notate liturgical chant, to compile and to revise liturgical books, and to compose and to write liturgical poetry, homilies, chronicles and hagiography. His life was mainly spent in writing and transcribing chant books and chronicles, and his principal work is a history entitled Chronicon Aquitanicum et Francicum or Historia Francorum. This is in three books and deals with Frankish history from the fabulous reign of Pharamond, king of the Franks, to 1028. The first two books are scarcely more than a copy of earlier histories of Frankish kings, such as the Liber Historiae Francorum, the Continuation of Fredegar and the Annales regni Francorum. The third book, which deals with the period from 814 to 1028, is of considerable historical importance. It relies partly on the Chronicon Aquitanicum, to which Adémar himself added a final notice for the year 1028.
He embraced the developing tale that Saint Martial, the third century bishop who Christianized the Limoges district, had actually lived centuries earlier, and was in fact one of the original apostles. And he supplemented the less than scanty documentation for the alleged 'apostolicity' of Martial, first with a forged Life of Martial, as if composed by Martial's successor, Bishop Aurelian. To effect this claim, he composed an "Apostolic Mass" that still exists in Adémar's own hand (Paris, Bibliothèque Nationale, fonds latin, (ms. 1121, ff. 28v-32v)). The local bishop and abbot seem to have cooperated in the project and the mass was first sung on Sunday, August 3, 1029.
Unfortunately for Adémar, the liturgy was disrupted by a travelling monk, Benedict of Chiusa, who denounced the improved Vita of Martial as a provincial forgery and the new liturgy as offensive to God. The word spread, and the promising young monk was disgraced. Adémar's reaction was to build forgery upon forgery, inventing a Council of 1031 that confirmed the 'apostolic' status of Martial, even a forged papal letter. The reality of this pathological tissue of forgeries was only unravelled in the 1920s, by a historian, Louis Saltet. Mainstream Catholic historians ignored Saltet's revelations until the 1990s.
In the long run, Adémar was successful. By the late 11th century, Martial was indeed venerated in Aquitaine as an apostle, though his legend was doubted elsewhere. In a very direct way, Adémar's Mass shows the power of liturgy to effect worship.
Works and legacy
Adémar composed his musical Mass and office according the local school of his uncle Roger who worked as a cantor between 1010 until his death in 1025 at St. Martial Abbey using those modal patterns, as they have been documented in the tonaries of the new troper-prosers (Pa 1121, 909), chant books to which Adémar had partly contributed as a notator. Concerning the Apostolic feast of the patron he composed as well the hymns as the music which had become the metier of a cantor at Saint Martial. For this liturgical occasion which he had to create, he contributed like other cantors with own compositions, especially in the tropes (extended musical items added to existing liturgical texts).
According to James Grier, Professor of Music History in the Don Wright Faculty of Music at Western University in London, Ontario, Adémar was the first person to write music using the musical notation still in use today. He placed the musical notes above the text, higher or lower according to the pitch. Professor Grier states that "Placement on the vertical axis remains the standard convention for indicating pitch in notation in Western culture and there is far greater weight on pitch than on many other elements such as dynamics and timbre". Therefore, in discovering this document written around 1000 years in the past, Professor Grier turns Adémar in one of the first - if not the first - to write music using "modern" notation. 
- Landes (1995, 77).
- James Grier (2006).
- James Grier (1995).
- See James Grier's entry for "Adémar de Chabannes" in the New Grove Dictionary.
- Montgomery, Marc. "Canadian musicologist makes 900 year old discovery". Radio Canada International. Retrieved 27 October 2014.
- "Paris, Bibliothèque Nationale, fonds lat., Ms. 1085". Abridged Antiphonary from the church St. Salvator Mundi, St. Martial Abbey in Limoges, with later modal classifications by Roger & Adémar de Chabannes (late 10th century). Retrieved 30 December 2011.
- "Paris, Bibliothèque Nationale, fonds lat., Ms. 1118". Troper, Tonary, Sequentiary and Proser from Southwestern France, Région d'Auch (987–96). Retrieved 30 December 2011.
- "Paris, Bibliothèque Nationale, fonds lat., Ms. 1120". Troper, Proser, Processional of St. Martial de Limoges (late 10th century). Retrieved 30 September 2013.
- "Paris, Bibliothèque Nationale, fonds lat., Ms. 1240". Troper from the church St. Salvator Mundi, St. Martial Abbey in Limoges (933-936). Retrieved 30 December 2013.
- "Paris, Bibliothèque Nationale, fonds lat., Ms. 1121". Troper, Sequentiary, and Tonary of St. Martial de Limoges, Adémar de Chabannes (11th century). Retrieved 30 December 2011.
- "Paris, Bibliothèque Nationale, fonds lat., Ms. 909". Troper, Sequentiary, and Tonary of St. Martial de Limoges (11th century). Retrieved 30 December 2011.
- Chronicon Aquitanicum et Francicum or Historia Francorum, ed. Jules Chavanon. Chronicon. Collection des textes pour servir à l'étude et à l'enseignement de l'histoire 20. Paris, 1897.
- Sermons, ed. and tr. Edmond Pognon, L’an mille. Oeuvres de Liutprand, Raoul Glaber, Adémar de Chabannes, Adalberon [et] Helgaud. Mémoires du passé pour servir au temps présent 6. Paris, 1947.
- Holland, Tom. Millennium. London: Abacus, 2009.
- Landes, Richard (1995). Relics, Apocalypse, and the Deceits of History: Ademar of Chabannes, 989-1034. Cambridge: Harvard UP.
- Leyser, Karl. "The Ascent of Latin Europe." In Communications and Power in Medieval Europe. The Carolingian and Ottonian Centuries London, 1994. Inaugural lecture, first published as Karl Leyser, The Ascent of Latin Europe. Oxford, 1986.
- Grier, James (1995). "Roger de Chabannes (d. 1025), Cantor of St Martial, Limoges". Early Music History 14: 53–119. doi:10.1017/s0261127900001443.
- Grier, James. "Adémar de Chabannes". Grove Music Online.
- Grier, James (2006). The musical world of a medieval monk: Adémar de Chabannes in eleventh-century Aquitaine. Cambridge, New York, Melbourne, Madrid, Cape Town, Singapore, São Paulo: Cambridge University Press. ISBN 978-0-521-85628-7.
- James Grier, "Hoax, History, and Hagiography in Adémar de Chabannes's Texts for the Divine Office," in Robert A. Maxwell (ed), Representing History, 900–1300: Art, Music, History (University Park, PA, Pennsylvania State University press, 2010),
- This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Adhemar de Chabannes". Encyclopædia Britannica (11th ed.). Cambridge University Press.
- Bourgain, Pascale (1985). "Un nouveau manuscrit du texte tronqué de la Chronique d'Adhémar de Chabannes". Bibliothèque de l'école des chartes 143 (1): 153–9. doi:10.3406/bec.1985.450372.
- Adémar de Chabannes on Find A Grave
- Landes, Richard (1995). "The Turbulent Career of a Monk of the Year 1000: Documentary Inversions and the Tale of Ademar of Chabannes (989-1034)". Retrieved 3 October 2013.