<?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">opera houses</topic></authority><related type="other"><topic>opera companies</topic></related><related type="broader"><topic>concert halls</topic></related><variant type="other"><topic>houses, opera</topic></variant><variant type="other"><topic>opera house</topic></variant><variant type="other"><topic>opera-houses</topic></variant><variant type="other"><topic>operas</topic></variant><variant type="other"><topic>opera theater</topic></variant><variant type="other"><topic>opera theaters</topic></variant> <note xml:lang="en"><![CDATA[ Concert halls designed specifically to accommodate the production needs of opera performances. ]]></note></mads>