French Formes Fixes
... The French formes fixes, or fixed forms, consists of the virelais, rondeaux and ballade. ... The leading French composer of the 14th century was Guillaume de Machaut (1300 – 1377) who composed many pieces using formes fixes. A great example of formes fixes is Rose, liz, printemps, verdure by Machaut (NAWM 20). ... This piece shows the extensive amount of repetition that is a characteristic of all formes fixes.