page_title: Cantus firmus
hierarchical_section_title: Cantus firmus
caption_attribution_description: English: Dufay - Missa cantus firmus, derived from Se la face ay pale.
context_page_description: In music, a cantus firmus is a pre-existing melody forming the basis of a polyphonic composition.
  The plural of this Latin term is cantus firmi, although the corrupt form canti firmi can also be found. The Italian is often used instead: canto fermo.
context_section_description: In music, a cantus firmus ("fixed melody") is a pre-existing melody forming the basis of a polyphonic composition.
  The plural of this Latin term is cantus firmi, although the corrupt form canti firmi (resulting from the grammatically incorrect treatment of cantus as a second- rather than a fourth-declension noun) can also be found. The Italian is often used instead: canto fermo (and the plural in Italian is canti fermi).
caption: Dufay – mass cantus firmus, derived from "Se la face ay pale".[1] About this soundPlay (help·info)
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