<?xml version="1.0" encoding="utf-8"?><metadata xmlns:dc="http://purl.org/dc/elements/1.1/"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dcterms="http://purl.org/dc/terms/"><dc:title xml:lang="en">plainsong</dc:title><dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31361408</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="en">Getty Institute</dc:publisher><dcterms:created>2026-03-30 20:37:30</dcterms:created><dcterms:isPartOf xsi:type="dcterms:URI">http://AATesaurus.cultura.gencat.cat/aat/getty_en</dcterms:isPartOf><dcterms:isPartOf xml:lang="en">Tesaurus d&apos;Art i Arquitectura</dcterms:isPartOf><dc:format>text/html</dc:format> <dcterms:alternative xml:lang="en">plainchant</dcterms:alternative> <dcterms:alternative xml:lang="en">plainchants</dcterms:alternative> <dcterms:alternative xml:lang="en">plainsongs</dcterms:alternative> <dc:description xml:lang="en"><![CDATA[ The official monophonic unison chants, originally unaccompanied, of Christian liturgies. Music was developed for voice, based on a system of modes and performed in free rhythm corresponding at least in part to the accentuation of the words, though often with considerable elaboration of the melody. In usuage, often applied chiefly to the music of the Western Church, particularly chants of the 4th-century St. Ambrose and in the 6th-century by St. Gregory the Great. ]]></dc:description></metadata>