This article brings Petrarch’s (1304–74) lyric poetry into dialogue with Barthes’s notion of “idiorrythmie” (idiorrhythmy) as outlined in his lecture course Comment vivre ensemble (How to Live Together). It explores both the idiorrhythmic aspects Petrarchan desire and traits utterance through which they are expressed, a focus on canzone 126 Rerum vulgarium fragmenta (Fragments Vernacular Things...