Mixxx 2.3.3 Mixxx is Free DJ software that gives you everything you need to perform live mixes.
Kid3 3.9.3 
Jaikoz 11.6.2 Powerful MP4 and MP3 tag editor.
Ocenaudio 3.11.22 Easy, fast and powerful audio editor.
Yate 6.13.1 Tag and organize your audio files.
TwistedWave 28.5 TwistedWave is an easy to use, fast and powerful audio editor for mac.
Boom 3D enhances all the audio coming out of your Mac. Movies, music, or games, everything sounds much more lifelike.
4K YouTube to MP3 4.8.0 Convert any video to MP3 in one click.
Loopback 2.2.12 Route audio between applications.
Airfoil 5.11.4 Stream any audio from your Mac all around your network. Send music services like Spotify or web-based audio like Pandora wirelessly to all sorts of devices, including the Apple TV, HomePod, Google Chromecast, Sonos devices, and Bluetooth speakers. You can even send to iOS devices and other computers.
Any audio on your Mac can now be heard throughout your house!
SoundSource 5.5.7 Switch your audio input sources easily.
Piezo 1.7.12 Quickly record audio from any application.
LilyPond 2.24.0 
Sound Siphon 3.4.3 Capture your Mac's audio in any app.
Sound Control 2.7.3 Sound Control is a unique application that adds advanced audio controls to your Mac. Control the audio of each of your apps independently with per-app volume, EQ, balance, and audio routing.
