<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31298151</termId><termName>natural</termName><termType>PT</termType><termNote><![CDATA[ Generally, having a basis in the normal constitution and operation of things as found in nature unaffected or minimally affected by humans. Specifically with reference to aerophones, having no valves, keys, or other mechanical means of altering the pitch produced by the instrument.  ]]></termNote><termCreatedDate>2026-03-30 20:19:55</termCreatedDate><relation><relationType>BT</relationType><termId>31296909</termId><termName>attributes and properties by specific type</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>31298147</termId><termName>musical range attributes</termName><termType>PT</termType></relation></term>  </Zthes>