How to: <a id="tag-audio" href="#tag-audio">Audio</a>
1. **Beets** - ([Repo](https://github.com/beetbox/beets), [Home](http://beets.io/), [PyPI](https://pypi.org/project/beets)) Feature-rich command-line music library manager with web UI, duplicate detection, transcoding, and tagging support, integrating with MusicBrainz, Discogs, and more. `(linux, windows, mac)`
  1. **Exaile** - ([Repo](https://github.com/exaile/exaile), [WP](https://en.wikipedia.org/wiki/Exaile)) Cross-platform audio player, tag editor, and library organizer. `(linux, windows, mac, gtk)`
  1. **Frescobaldi** - ([Repo](https://github.com/wbsoft/frescobaldi), [WP](https://en.wikipedia.org/wiki/Frescobaldi_%28software%29)) An editor for [LilyPond](https://en.wikipedia.org/wiki/LilyPond) music files. `(linux, windows, mac, qt)`
  1. **Friture** - ([Repo](https://github.com/tlecomte/friture), [Home](http://friture.org/)) Visualizes and analyzes live audio data in real-time, including scope, spectrum analyzer, rolling 2D spectrogram, and more. `(linux, windows, mac, qt5)`
  1. **Funkwhale** - ([Repo](https://dev.funkwhale.audio/funkwhale/funkwhale), [Home](https://funkwhale.audio/en_US), [Docs](https://docs.funkwhale.audio/)) Web-based, community-driven project that lets you listen and share music and audio within a decentralized, open network. `(server)`
  1. **GNU Radio** - ([Repo](https://github.com/gnuradio/gnuradio), [Home](https://www.gnuradio.org/), [WP](https://en.wikipedia.org/wiki/GNU_Radio)) Software development toolkit that provides signal processing blocks to implement software-defined radios and signal-processing systems. `(linux, windows, mac, cpp, qt)`
  1. **GNU Solfege** - ([Repo](http://git.savannah.gnu.org/cgit/solfege.git), [WP](https://en.wikipedia.org/wiki/GNU_Solfege)) An ear-training program intended to help musicians improve their skills. `(linux, windows, mac, gtk)`
  1. **Mopidy** - ([Repo](https://github.com/mopidy/mopidy), [Home](https://www.mopidy.com/)) Extensible music player server with plugin support for a wide range of services. `(server)`
  1. **Music Player** - ([Repo](https://github.com/albertz/music-player), [Home](http://albertz.github.io/music-player)) A simple music player designed around an infinite intelligent playlist, with support for headless playback. `(linux, mac)`
  1. **MusicBrainz Picard** - ([Repo](https://github.com/metabrainz/picard), [Home](https://picard.musicbrainz.org/), [WP](https://en.wikipedia.org/wiki/MusicBrainz_Picard)) Automatically identify, tag, and organize music albums and other digital audio recordings. `(linux, windows, mac, qt)`
  1. **PuddleTag** - ([Repo](https://github.com/keithgg/puddletag), [WP](https://en.wikipedia.org/wiki/Puddletag)) An audio tag (metadata) editor for audio file formats. `(linux, qt4)`
  1. **Quod Libet** - ([Repo](https://github.com/quodlibet/quodlibet), [WP](https://en.wikipedia.org/wiki/Quod_Libet_%28software%29)) Cross-platform audio player, tag editor, and library organizer. `(linux, windows, mac, gtk)`
  1. **SoundConverter** - ([Repo](https://github.com/kassoulet/soundconverter), [WP](https://en.wikipedia.org/wiki/GNOME_SoundConverter)) A GNOME-based audio file transcoder. `(linux, gtk)`
  1. **SoundGrain** - ([Repo](https://github.com/belangeo/soundgrain), [Home](http://ajaxsoundstudio.com/software/soundgrain), [Fund](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=9CA99DH6ES3HA)) Graphical interface designed for drawing and editing trajectories to control [granular sound synthesis](https://en.wikipedia.org/wiki/Granular_synthesis). `(linux, windows, mac)`
  1. **Stargate DAW** - ([Repo](https://github.com/stargatedaw/stargate)) All-in-one Digital Audio Workstation (DAW) with a suite of instrument and effect plugins. `(linux, windows, mac, qt56)`
  1. **Supysonic** - ([Repo](https://github.com/spl0k/supysonic)) Implementation of the [Subsonic server API](http://www.subsonic.org/), with support for browsing, streaming, transcoding, scrobbling, and more. `(server)`
  1. **Whipper** - ([Repo](https://github.com/whipper-team/whipper)) A CLI-based CD Audio ripper designed for accuracy over speed, with support for overriding hardware caches, accuracy verification, MusicBrainz metadata lookup, hidden tracks, FLAC, and much more. `(linux)`