<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31410521</termId><termName>music theory</termName><termType>PT</termType><termNote><![CDATA[  Discipline involving the study of the theoretical aspects of music and its notation, typically as opposed to actual performance. ]]></termNote><termCreatedDate>2026-03-30 20:50:23</termCreatedDate><relation><relationType>UF</relationType><termId>31410522</termId><termName>theory, music</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31372548</termId><termName>music</termName><termType>PT</termType></relation></term>  </Zthes>