Johannes Cotto
Encyclopedia
Johannes Cotto (fl. c. 1100) was a music theorist
Music theory
Music theory is the study of how music works. It examines the language and notation of music. It seeks to identify patterns and structures in composers' techniques across or within genres, styles, or historical periods...

, possibly of English
England
England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

 origin, most likely working in southern Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 or Switzerland
Switzerland
Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....

. He wrote one of the most influential treatises on music of the Middle Ages
Medieval music
Medieval music is Western music written during the Middle Ages. This era begins with the fall of the Roman Empire and ends sometime in the early fifteenth century...

, one which included unusually precise directions for composing chant
Gregorian chant
Gregorian chant is the central tradition of Western plainchant, a form of monophonic liturgical music within Western Christianity that accompanied the celebration of Mass and other ritual services...

 and organum
Organum
Organum is, in general, a plainchant melody with at least one added voice to enhance the harmony, developed in the Middle Ages. Depending on the mode and form of the chant, a supporting bass line may be sung on the same text, the melody may be followed in parallel motion , or a combination of...

.

Life

Next to nothing is known about his life; indeed his identity has been a matter of controversy among scholars. Formerly it was thought he was from Lorraine
Lorraine (province)
The Duchy of Upper Lorraine was an historical duchy roughly corresponding with the present-day northeastern Lorraine region of France, including parts of modern Luxembourg and Germany. The main cities were Metz, Verdun, and the historic capital Nancy....

 or Flanders
Flanders
Flanders is the community of the Flemings but also one of the institutions in Belgium, and a geographical region located in parts of present-day Belgium, France and the Netherlands. "Flanders" can also refer to the northern part of Belgium that contains Brussels, Bruges, Ghent and Antwerp...

, based on a dedication he made in his treatise, but other more recent evidence suggests that he may have been a John Cotton from England who worked under an abbot named Fulgentius at or near St. Gallen
St. Gallen
St. Gallen is the capital of the canton of St. Gallen in Switzerland. It evolved from the hermitage of Saint Gall, founded in the 7th century. Today, it is a large urban agglomeration and represents the center of eastern Switzerland. The town mainly relies on the service sector for its economic...

 (in modern Switzerland). Some of the more compelling evidence includes his knowledge of chant peculiarities of that region, notational idiosyncrasies found only in southern Germany, and his use of the old Greek modal names such as Phrygian
Phrygian mode
The Phrygian mode can refer to three different musical modes: the ancient Greek tonos or harmonia sometimes called Phrygian, formed on a particular set octave species or scales; the Medieval Phrygian mode, and the modern conception of the Phrygian mode as a diatonic scale, based on the latter...

 and Mixolydian
Mixolydian mode
Mixolydian mode may refer to one of three things: the name applied to one of the ancient Greek harmoniai or tonoi, based on a particular octave species or scale; one of the medieval church modes; a modern musical mode or diatonic scale, related to the medieval mode.-Greek Mixolydian:The idea of a...

, something which was mainly done in Germany.

Works and influence

His De musica was one of the most widely copied and distributed music treatises of the medieval period, with some copies appearing even after 1400. Most likely it was written around 1100, and its comments, examples, and suggestions correspond closely with the music of the contemporary St. Martial school
St. Martial School
The Saint Martial School was a medieval school of composition centered in the Abbey of Saint Martial, Limoges, France. It is known for the composition of tropes, sequences, and early organum. In this respect, it was an important precursor to the Notre Dame School.Most of the manuscripts that are...

 and Codex Calixtinus
Codex Calixtinus
The Codex Calixtinus is a 12th-century illuminated manuscript formerly attributed to Pope Callixtus II, though now believed to have been arranged by the French scholar Aymeric Picaud. The principal author is actually given as 'Scriptor I'....

, as well as the material in the treatise Ad organum faciendum (also known as the "Milan Treatise") from about the same time.

De musica consists of twenty-seven chapters, and covers a wide range of musical topics. Unlike many medieval treatises, it largely avoids metaphysical speculations, instead functioning as a practical guide for a working musician. Much of the source material is from Guido of Arezzo
Guido of Arezzo
Guido of Arezzo or Guido Aretinus or Guido da Arezzo or Guido Monaco or Guido d'Arezzo was a music theorist of the Medieval era...

, Boethius
Anicius Manlius Severinus Boethius
Anicius Manlius Severinus Boëthius, commonly called Boethius was a philosopher of the early 6th century. He was born in Rome to an ancient and important family which included emperors Petronius Maximus and Olybrius and many consuls. His father, Flavius Manlius Boethius, was consul in 487 after...

, Odo of Cluny
Odo of Cluny
Saint Odo of Cluny , a saint of the Roman Catholic Church, was the second abbot of Cluny. He enacted various reforms in the Cluniac monastery system of France and Italy....

, Isidore of Seville
Isidore of Seville
Saint Isidore of Seville served as Archbishop of Seville for more than three decades and is considered, as the historian Montalembert put it in an oft-quoted phrase, "le dernier savant du monde ancien"...

, and Hermannus Contractus
Hermannus Contractus
Hermann of Reichenau , also called Hermannus Contractus or Hermannus Augiensis or Herman the Cripple, was an 11th century scholar, composer, music theorist, mathematician, and astronomer. He composed the Marian prayer Alma Redemptoris Mater...

.

After chapters on Greek notation, musical timbre
Timbre
In music, timbre is the quality of a musical note or sound or tone that distinguishes different types of sound production, such as voices and musical instruments, such as string instruments, wind instruments, and percussion instruments. The physical characteristics of sound that determine the...

, the ethical and moral effects of the musical mode
Musical mode
In the theory of Western music since the ninth century, mode generally refers to a type of scale. This usage, still the most common in recent years, reflects a tradition dating to the middle ages, itself inspired by the theory of ancient Greek music.The word encompasses several additional...

s, and the composition of chant
Gregorian chant
Gregorian chant is the central tradition of Western plainchant, a form of monophonic liturgical music within Western Christianity that accompanied the celebration of Mass and other ritual services...

, the treatise includes the section most of interest to contemporary scholars: a detailed description of how to compose organum
Organum
Organum is, in general, a plainchant melody with at least one added voice to enhance the harmony, developed in the Middle Ages. Depending on the mode and form of the chant, a supporting bass line may be sung on the same text, the melody may be followed in parallel motion , or a combination of...

. Most of his examples are note-against-note, and demonstrate how to end on a fifth or an octave by good voice-leading; he emphasizes the importance of contrary motion, a practice which differed from the parallel organum of the preceding centuries (though it probably reflected a current practice; in the absence of many surviving 11th century manuscripts it is difficult to date when the switch from mostly parallel to mostly contrary motion occurred).

One passage in De musica which has attracted much attention is his description of organum sung with several notes in the organal voice versus one note in the underlying chant, one of the earliest examples of polyphony
Polyphony
In music, polyphony is a texture consisting of two or more independent melodic voices, as opposed to music with just one voice or music with one dominant melodic voice accompanied by chords ....

 escaping from the straitjacket of single note against single note.

Johannes may have been a composer, though no music attributed to him has survived. His directions for composing melody
Melody
A melody , also tune, voice, or line, is a linear succession of musical tones which is perceived as a single entity...

, with their careful and practical instructions involving pacing, position of high and low notes, and use of recognizable figurations at different pitch levels seem to imply that he may have had some experience himself.

External links

  • musicologie.org Complete note: sources, editions, bibliography, comments.
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