<?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">cylinders</topic></authority><related type="narrower"><topic>dictation cylinders</topic></related><related type="broader"><topic>sound recordings</topic></related><variant type="other"><topic>audio cylinder</topic></variant><variant type="other"><topic>audio cylinders</topic></variant><variant type="other"><topic>cylinder</topic></variant><variant type="other"><topic>cylinder recording</topic></variant><variant type="other"><topic>cylinder recordings</topic></variant><variant type="other"><topic>cylinder records</topic></variant><variant type="other"><topic>cylinder, phonograph</topic></variant><variant type="other"><topic>cylinders, phonograph</topic></variant><variant type="other"><topic>phonocylinders</topic></variant><variant type="other"><topic>phonograph cylinder</topic></variant><variant type="other"><topic>phonograph cylinders</topic></variant><variant type="other"><topic>wax cylinder</topic></variant><variant type="other"><topic>wax cylinders</topic></variant> <note xml:lang="en"><![CDATA[ Sound recordings invented by Thomas Edison in 1877. They were the earliest form of phonograph record, and were marketed commercially. Sound would be funnelled through a horn and against a diaphragm, which would vibrate. The resulting vibrations were transmitted to a stylus, which followed a helical path along a surface, usually wax, which coated a rotating cylinder. The resulting cylinder could be played by a cylinder phonograph.  ]]></note></mads>