<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31323163</termId><termName>keys</termName><termType>PT</termType><termNote><![CDATA[ Leverlike mechanical devices attached to or forming an integral part of a musical instrument or other sound device, functioning either as part of the direct sound-producing mechanism, as when admitting air to a pipe or causing a string to be struck or plucked, or, when on a confined aerophone, as devices governing those tone-holes that are out of reach or too large for the unaided finger. ]]></termNote><termCreatedDate>2026-03-30 20:27:08</termCreatedDate><relation><relationType>UF</relationType><termId>31323164</termId><termName>key</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31307133</termId><termName>sound device components</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31349338</termId><termName>keyboards</termName><termType>PT</termType></relation></term>  </Zthes>