<?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">sound signaling devices</topic></authority><related type="narrower"><topic>slit drums</topic></related><related type="narrower"><topic>post horns</topic></related><related type="narrower"><topic>hunting horns</topic></related><related type="narrower"><topic>whistles</topic></related><related type="narrower"><topic>buccinae</topic></related><related type="narrower"><topic>sanctus bells</topic></related><related type="narrower"><topic>beepers</topic></related><related type="narrower"><topic>buzzers</topic></related><related type="narrower"><topic>sirens</topic></related><related type="narrower"><topic>altar bells</topic></related><related type="narrower"><topic>sanctus gongs</topic></related><related type="broader"><topic>sound devices by function</topic></related><related type="broader"><topic>signaling equipment</topic></related><variant type="other"><topic>devices, sound signaling</topic></variant><variant type="other"><topic>sound signaling device</topic></variant> <note xml:lang="en"><![CDATA[ Sound devices that produce sound for the purpose of conveying information. ]]></note></mads>