EDWARD'S LECTURE NOTES:
More notes at http://tanguay.info/learntracker
C O U R S E 
Western Music History through Performance
Jonathan Coopersmith, Curtis Institute of Music
https://www.coursera.org/course/musichistoryperforms
C O U R S E   L E C T U R E 
Polyphony
Notes taken on December 15, 2015 by Edward Tanguay
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one of the biggest issues with neumatic notation is that it doesn't show rhythm
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there's a flow to a chant
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some notes are held longer than others
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sometimes it speeds up
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sometimes it slows down
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sometimes there are pauses
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it was a learned art, you had to get the feel of knowing the standard way to employ these effects
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chant in the Catholic Church was officially monophonic
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a single line of music at a time
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but it's likely that musicians in the Middle Ages experimented with polyphony
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multiple lines of music at a time
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probably improvised based off of the written chant
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Schola Cantorum
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school of singers
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were given a specific written chant
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most of the singers would sing the written chant
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there would be a few people who would be able to improvise below or above the written line
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these improvisations were the first experiments in polyphony
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polyphony
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Drone
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a simple held note below the musical line of the chant
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Parallel Organum
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from treatise in the 800s
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singing in a parallel line to a given chant
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e.g. a second person would sing the same chant up a perfect fifth, or up an octave
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Similar Organum
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two lines moving together in similar motion
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followed the same contours of a music line, moving like a school of fish
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Contrary Organum
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one voice would go up while the other voice goes down
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there were complicated rules that followed because there were only certain consonances and dissonances were allowed
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all of this was improvised
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so it took quite a musical mind to think of the right consonances and dissonances in real time
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Notre Dame in 11th and 12th centuries
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1250 a system of notation that would indicate rhythm
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Johannes de Garlandia
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French music theorist
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for the first time in over 1000 years, standard rhythm was notated
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"Synonoma magistri"
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concerning measurable music
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came up with various combinations of neumes linked together called ligatures
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six rhythmic modes
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basic unit of time was called a tempus
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a tempus always got one beat
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there always had to be groupings of three beats together
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two kinds of notes: a long and a breve
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obvious problems
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only six rhythmic modes
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doesn't give a lot of freedom
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Franco of Cologne
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composer and music theorist
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created a new system of notation
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"The Art of Measurable Music"
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create note shapes that directly indicated rhythm
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music was still grouped in threes called a perfection
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each voice could not have unique shape and unique rhythmic pattern
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the limitation was the music always had to be grouped in groups of three, or perfections