Guido d'Arezzo

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Guido d'Arezzo

(gwē`dō därĕt`tsō) or

Guido Aretinus

(ârətī`nəs), c.990–1050, Italian Benedictine monk, known for his contributions to musical notation and theory. His theoretical work Micrologus (c.1025) is one of the principal sources of our knowledge of organumorganum
, in music, compositional technique, developed in Europe during the 10th cent., in which each note of Gregorian chant melody was doubled by another note. In the earliest examples, called parallel organum, the doubling interval was constant, usually the lower fourth or
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, an early form of polyphony. His work in musical notationmusical notation,
symbols used to make a written record of musical sounds.

Two different systems of letters were used to write down the instrumental and the vocal music of ancient Greece. In his five textbooks on music theory Boethius (c.A.D. 470–A.D.
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 included the addition of two lines (one red, one yellow) to the two already serving as a staff and the use of both the lines and the spaces. Also important was his system of solmization (sometimes called, after him, Aretinian syllables), whereby the syllables ut, re, mi, fa, sol, la are used as names for the six tones, C to A, known as the hexachord. As the octave replaced the hexachord, an additional syllable, si or ti, was added, and eventually ut was replaced by the more singable do. Other revisions of Guido's system that have been suggested from time to time have not survived.
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References in periodicals archive ?
(31.) Jan Herlinger, "Reflections of Guido d'Arezzo (?) in an Unpublished Treatise of the Fifteenth Century," paper delivered at the International Congress on Guido d'Arezzo on the Occasion of the Thousandth Anniversary of His Birth, Arezzo, December 2000.
The device of `suspended' organum described by Guido d'Arezzo in his Micrologus is used in the communion Vox in Rama, and there are also examples of the primitive Winchester-type organa that, like those of Chartres, require reconstruction.
UPSA has earned the distinction of being the only Asian choir that has won twice the Grand Prize at the Concorso Polifonico Internazionale, Guido D'Arezzo in Arezzo, Italy, which they won first in 2001.
The University of the Philippines Singing Ambassadors (UPSA) has just earned the right to participate in the most prestigious 2019 European Choral Grand Prix competition after bagging the top prize at the 66th Concorso Polifonico Internazionale Guido D'Arezzo in Toscana, Italy, on Sunday.
Since at least the 11th century, when Italian Benedictine monk Guido d'Arezzo put forth his methods for choir training, many teachers have agreed that associating specific syllables with specific notes can facilitate sight singing.
Fondazione Guido d'Arezzo. Edited by Paola Besutti et al.
The Upsa has been on a European tour since July, and has bagged first prizes and Grand Prix in several competitions in Germany, Spain and Italy, including the most difficult one, the 66th Concorso Polifonico Internazionale Guido d'Arezzo.
Neuchatel, Switzerland (August 2008); 3) 3rd International Choir Competition of Sacred Musi., Prague, Czech Republic (July 2005), and 4) 4th Concorso Polifonico "Guido d'Arezzo." Arezzo, Italy (2001).
They include, above all, Johannes de Muris's Musica speculativa, but also those of Boethius, the Musica enchiriadis, Guido d'Arezzo, and Johannes Cotto (also known as Affligemensis or Cotto), which were widely copied before the interregnum of the homegrown treatises linked to the Joannes Olendrinus (Hollandrinus) tradition noteworthy for discussions of coniuncta.
Guido d'Arezzo's Regule rithmice, Prologus in antiphonarium, and Epistola ad Michahelem: A Critical Text and Translation, with an Introduction, Annotations, Indices, and New Manuscript Inventories.