REFRAIN"The long thirteenth century was characterised by a vernacular musico-poetic culture in which short fragments of text and/or music circulated within and between songs of various types (chanson à refrain, chanson avec des refrains, rondeau), the motet repertory, the romance and a host of other types that impinged on music, literature or both. REFRAIN provides a searchable database of this repertory, providing access through refrains themselves, motets, narratives, songs and other genres." - REFRAIN