Chapter 3 focuses on the implications of the refrain for performance, reappraising its role as a marker of responsorial song. The chapter argues that the refrain in devotional Latin song brought individuals and communities together in the moment of performance through the acts of remembering together, responding collectively, and worshipping communally. Drawing on the rhetoric, grammar, form, and musical texture of Latin refrain songs, this Chapter illustrates how poets and composers embedded ideas about performance, community, and communal participation in their compositions. Crucially, the songs themselves define communities rooted in the structures of the church; singers and songs belong to nested and hierarchical communities of clergy, choir, and laypeople, the power relations of which are determined in some cases by rank and in others by age. The efforts of the scribes and compilers who worked within these communities contribute additional layers of information to the meaning and performance of refrains, with rubrication and textual cues offering rare insight into specific contexts for the refrain song’s responsorial performance. Chapter 3 also suggests a relationship between the refrain song’s implicit choreographic identity and the discourses of community conveyed by the refrain.