1. Leonin
More than a composer.

2. •French
composer of
the 12th
century
•Born in
Paris, receive
d training and
later worked
at the Notre
Dame
Cathedral

3. •First-known significant composer
of organum
•Organum = the earliest
polyphonic music, based on
Gregorian chant
•Style came to be known as
“Notre Dame Polyphony” (florid
organum with a sense of meter)

4. •Leonin was the first to develop
“modal notation” to symbolize
rhythm, which laid the basis for
notation as we know it.
•Composed “Magnus Liber” (a
book of organum)
•His work was improved and
expanded by Perotin, one of his
students.