..., the poems of these conducti exhibit significant relationships not with French refrains but with homonymous and widely sung liturgical sequences. These conducti are not simply contrafacts but reflect a compositional negotiation between variously borrowed and new elements, resulting in Latin songs implicated...

...J. Peter Burkholder Studies of allusion, modeling, paraphrase, quotation, and other forms of musical borrowing hinge on the claim that the composer of one piece of music has used material or ideas from another. What evidence can be presented to support or refute this claim? How can we know...