Musictube
Musictube is a free and open source program to listen to music/songs from YouTube
Flacon
Flacon extracts individual tracks from one big audio file containing the entire album of music and saves them as separate audio files
Selene
Selene – free and open source audio/video converter for converting files to various formats
SoundConverter
SoundConverter – free and open source simple, convenient and fast audio file converter for Linux
SoundKonverter
SoundKonverter is a frontend to various audio converters, software for transfer the contents of audio CDs to your PC and convert the contents of music folders
Cozy
Cozy – free and open source a modern software for organizing and listening to audiobooks for Linux
Audio Recorder
Audio Recorder – free and open source software for recording audio from various sources
Deepin Voice Recorder
Deepin Voice Recorder a free and open source simple voice recorder application from Deepin
GNOME Sound Recorder
GNOME Sound Recorder a free and open source simple and modern sound recorder
CPod
CPod a simple, beautiful cross platform free and open source podcast app for Windows, macOS, and Linux