Born around 1675, he was is noted among the violin students at the Conservatorio della Pietà dei Turchini in Naples, then among the musicians of the Chapelle Royale until 1702.
Between 1713 and 1716, Crozat commissioned Watteau to decorate his Salle à Manger with four paintings on the theme of the seasons. It was no doubt to pay tribute to this admirable new ensemble that Guido composed his Scherzi armonici sopra le quattro stagioni dell'anno around 1717, based on four anonymous poems: Les Caractères des Saisons. Each of these “musical entertainments” has ten or so movements and, although called a concerto, resembles a French suite: the music is a skilful blend of Italian and French styles.
The publication of Guido's Saisons in Versailles bears no date, but it's reasonable to assume that they were written between 1725 and 1733: they are contemporary with Vivaldi's famous Saisons, and perhaps a little earlier. So, who inspired whom?