* Chansons: Machaut was a master of the Ars Nova style, composing numerous chansons, which were secular songs in French. These chansons were often complex in form and rhythm, featuring intricate melodic lines and sophisticated harmonies.
* Motets: He also wrote motets, sacred choral works with complex polyphonic textures. These motets often employed multiple voices and textural contrasts.
* Masses: Machaut is known for his monumental Messe de Nostre Dame, one of the earliest complete polyphonic settings of the Ordinary of the Mass. It was a groundbreaking work for its time, demonstrating his compositional prowess and innovative use of polyphony.
* Other Works: He wrote other works such as conductus, rondeaux, and ballades, all of which were instrumental in developing the musical language of the Ars Nova.
In summary, Guillaume de Machaut's compositions mainly consisted of chansons, motets, masses, and other works in the Ars Nova style. His music was known for its complexity, sophistication, and innovation. He played a pivotal role in shaping the musical landscape of the 14th century.