1 jan 900 ano - Musica Enchiriadis

Descrição:

is an anonymous musical treatise of the 9th century. It is the first surviving attempt to set up a system of rules for polyphony in western art music.

This music theory treatise, along with its companion text, Scolica enchiriadis, was widely circulated in medieval manuscripts, often in association with Boethius' De institutione musica.[4] It consists of nineteen chapters; the first nine are devoted to notation, modes, and monophonic plainchant.[4]

Chapters 10-18 deal with polyphonic music. The author here shows how consonant intervals should be used to compose or improvise the type of early-medieval polyphonic music called [4] organum, an early style of note-against-note polyphony several examples of which are included in the treatise.

o Placement of the vox organalis & vox principalis
o Modified parallel organum and parallel organum
 Modified: Because, the piece has 2nds/3rds/etc…
 Parallel: All 5ths or 4ths
o Simple and compound organum
 Simple: 2 part organum (5ths and 4ths typically)
 Compound/Composite: octaves
o Vox Principalis (main voice)

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