Great Book of Organa
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The Magnus liber organi (Great Book of Organum) is a significant collection of polyphonic music from the Middle Ages, compiled around 1170. It is primarily associated with the composer Léonin, who is considered the first major composer known by name. This work features two-voiced settings of Gregorian chant melodies, specifically for the Graduals, Alleluias, and Responsories used throughout the liturgical year.12
Organum itself refers to a style of medieval music where a chant melody (the tenor) is elaborated upon by a countermelody sung above it. The Magnus liber organi showcases both melismatic (multiple notes per syllable) and note-against-note styles, often incorporating rhythmic modes for structure. Léonin's compositions were later expanded upon by his successor, Pérotin.213
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Both men worked on the Magnus Liber Organi (“Great Book of Organum”), a collection of two-part organums for the entire church year.
Read MoreBoth men worked on the Magnus Liber Organi (“Great Book of Organum”), a collection of two-part organums for the entire church year.
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…Léonin and Pérotin, wrote the Magnus Liber Organi, a compilation including settings of 59 Graduals and Alleluias in two to four voices. Some pieces have an unmeasured melismatic (many notes per syllable) upper voice over prolonged notes of the chant; others have measured, regular, recurring rhythmic patterns in all of…
Read More…Léonin and Pérotin, wrote the Magnus Liber Organi, a compilation including settings of 59 Graduals and Alleluias in two to four voices. Some pieces have an unmeasured melismatic (many notes per syllable) upper voice over prolonged notes of the chant; others have measured, regular, recurring rhythmic patterns in all of…
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