Who is considered one of the greatest composers of the ars nova?

Guillaume de Machaut is celebrated as one of the greatest composers of the ars nova, a musical style that emerged in the 14th century primarily in France. Machaut's significance lies in his innovative compositions that exemplify the sophisticated developments of that era, such as the use of isorhythm and heightened emphasis on secular themes alongside sacred music. His works were pivotal in the transition to a new musical language, blending complex melodies and rich textures that expanded the emotional range of music at the time.

In addition to his notable compositions, Machaut's contribution to music theory and his establishment of the motet as a prominent genre further solidified his status within the ars nova movement. His ability to weave together intricate vocal lines set a standard for future composers, influencing the trajectory of Western music significantly. Thus, his reputation as a leading figure of the ars nova is well-earned, marking him as a cornerstone in music history.