<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">keys</topic></authority><related type="other"><topic>keyboards</topic></related><related type="broader"><topic>sound device components</topic></related><variant type="other"><topic>key</topic></variant> <note xml:lang="en"><![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. ]]></note></mads>