Polyphony
Counterpoint
Harmony
The need to regulate the different independent sounds of each line (countepoint) harmony was created.
Organum
Parallel and oblique Organum
When a plainchant melody in the principle voice is duplicated fifths below the organol voice.
Sometimes, it produces a harsh sound so to prevent this Oblique motion was invented,
which the organ voice (added part) was melodically different with:
wider intervals including dissonances.
Free organum or discant
Singing a melismatic passage against a single note of the chant
In this style:
the organal or added voice has rhythmic and melodic independence
later called discant
Leoninus (1163-90)
Organum Duplum or Aquitaine organum
Lower voice (an existing chant) holding long notes while upper voice (added) singing melismatic.
this was called organum Duplum
rhytmic modes
singer in france devised a system of rhytmic notation involving patterns of long and short notes (rhytmic modes)
Clausula
A section in Discant style was called Clausula
> Characteristically more consonant,
Short phrases
Lively pacing because both voices >move in modal rhythm
Modal rhythm is long and short notes
early Motet (13th)
Protinus (1200-38)
student of Leoninus
> Created a clausula repertory
Added voices to organum, 3 to 4
Franconian
> The Triplum bears a longer text and a faster moving melody with short notes
rather than written in one melodic line and rhythm