Stylistically, Solage's works exhibit two distinctly different characters: a relatively simple one usually associated with his great predecessor and elder contemporary Guillaume de Machaut, and a more recherché one, complex in the areas of both pitch and rhythm, characteristic of the ars subtilior ("more subtle art"). These two styles mostly exist separately in different songs but sometimes are found mixed in a single composition, where they can be used to underscore the musical and poetic structure. In his simpler "Machaut" style pieces Solage nevertheless makes many personal choices that are very different from what Machaut typically does