addon.xml

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<addon id="context.music-tags-extractor"
	   name="Music tags extractor"
	   version="0.0.3"
	   provider-name="linuxwhatelse">

	<requires>
		<import addon="xbmc.python" version="2.20.0"/>
		<import addon="script.module.mutagen" version="1.22.0"/>
	</requires>

    <extension point="kodi.context.item" library="context.py">
        <item>
            <label>30000</label>
            <visible>!IsEmpty(ListItem.TrackNumber)</visible>
            <!--<visible>!IsEmpty(ListItem.Artist) | !IsEmpty(ListItem.Album) | !IsEmpty(ListItem.TrackNumber)</visible>-->
        </item>
    </extension>

	<extension point="xbmc.addon.metadata">
		<license>GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007</license>
		<platform>all</platform>
		<summary lang="en">Music tags extractor</summary>
		<description lang="en">
Allows to extract tags of your music collection to help "Team Kodi"
debug music related problems.

Usage:
 1. Navigate to a song
 2. Open the context menu ("c" key on your keyboard)
 3. Select "Extract Tags"
 4. Choose a directory to extract the tags to
		</description>
	</extension>
</addon>