This app is a plugin. Prior to use it you should have https://f-droid.org/packages/ch.blinkenlights.android.vanilla installed. Once both player and this plugin are installed, request a context menu from library screen, select "Plugins" and "Metadata fetch" afterwards. Note that this plugin requires internet connection to be useful. This plugin can create fingerprint for any music file you wish to know about and request its metadata from <a href="https://acoustid.org">AcoustID</a>, libre and open source fingerprinting service. If match is found it is then shown on the screen. <b>Features:</b> * Fetches tag metadata for various music files (mp3/ogg/flac) * Can also fetch cover image for selected song * Can write retrieved cover and tags if https://f-droid.org/packages/com.kanedias.vanilla.audiotag is installed