Marcoat was an innovator building off the work of the contemporary Gascon Marcabru, whose death he recalls in one of his works c. 1150. Nonetheless, his works are very simple, the stanzas being composed of three heptasyllables rhyming in the form AAB. It was he who first used the term sirventes to describe his poems; the word appears in both of his surviving works, twice in one:
Mentre m'obri eis huisel,
un sirventes escubel
en giteira inz s'arena
. . .
Mon serventes no val plus,
que faitz es de bos moz clus
apren lo, Domeing Sarena.
The meaning of these verses is obscure, as he was an early practitioner of the trobar clus style. According to himself, he wrote vers contradizentz (contradictory verses). He was a model for the later troubadour Raimbaut d'Aurenga.
Dejeanne, Jean-Marie-Lucien. "Marcoat." Annales du Midi, xv (1903).
Harvey, Ruth. "Eleanor of Aquitaine and the Troubadours." The World of Eleanor of Aquitaine: Literature and Society in Southern France between the Eleventh and Twelfth Centuries, edd. Marcus Bull and Catherine Léglu. Woodbridge: Boydell Press, 2005. ISBN1-84383-114-7.
Pfeffer, Wendy. Review of Suzanne Thiolier-Méjean, La Poétique des Troubadours: Trois Études sur le Sirventes, in Speculum, 72:1 (Jan., 1997), pp.230–231.
Thiolier-Méjean, Suzanne. La poétique des troubadours: Trois études sur le sirventes. Paris: Presse de l'Université de Paris-Sorbonne, 1994.