A History of Classical Music through Recordings: Part 5
“Motetus”. Clemencic Consort/René Clemencic. Stradivarius (link)
Over the course of the 13th century, the main polyphonic forms, organum and conductus, declined in popularity to be replaced by a new form, the motet (this name being a diminutive form of mot, the French for ‘word’). To understand how the motet came about we must look back at a particular aspect of the polyphony developed by Leonin and the Notre Dame school: the clausula. This was a segment of organum in which a short piece of text, usually just a word or two, was sung melismatically using many notes while the tenor voice slowly sang the text once. Musicians began to replace the melismas with new texts that had some relevance to the words of the organum and that were sung syllabically. Clausulas were regarded as separate modules that could be inserted into an organum as needed, but this independence meant that over time they began to be sung on their own as a composition called a motet (which, you may remember, is what happened with the sequence in Gregorian chant). The new text and its music was referred to as the duplum or motetus, and there could also be another, separate but topically related, text on top of that, called the triplum, and there could even be a quadruplum. As the Clemencic Consort demonstrates on its album, new motet texts weren’t necessarily in Latin: while the tenor text remained a Latin phrase, the duplum (and triplum, if there was one) could be in French. And once the language switched to the vernacular, it shouldn’t be surprising that the topics should change to more secular concerns, and the lyrics resemble the poetry of the trouvères.
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