Cantus Firmus(redirected from Canti firmi)
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Related to Canti firmi: Cantus firmi, Canti fermi
a melody borrowed from any secular or religious work or specially created and used as the basis for a polyphonic musical composition. The method of cantus firmus developed in Western European music in the 12th century, became particularly widespread in the 16th, and began losing its importance in the 17th.