<?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">slides</topic></authority><related type="other"><topic>trombones</topic></related><related type="broader"><topic>aerophone components</topic></related><variant type="other"><topic>slide</topic></variant> <note xml:lang="en"><![CDATA[ In brass instruments, U-shaped segments of cylindrical tubing fitted over two straight segments of tubing in such a way as to be able to slide easily in and out, thus changing the instrument's effective total length, and with it, its fundamental pitch during play. ]]></note></mads>