Olivia
Olivia is a free and open source online/offline cloud music player such as iTunes, Spotify and others
Ex Falso
Ex Falso is a free and open source, multi-platform program for viewing and editing audio file tags
Vvave
Vvave is a free and open source program for playing your music collection for KDE Linux
Ciano
Ciano is a free and open source simple multimedia converter for Linux
Audacity
Audacity – free and open source, multi-platform and easy-to-use, multi-track audio editor and recorder
Hypnotix
Hypnotix is a free and open source program for watching live TV streaming, movies and series, as well as listening to radio for Linux
Playary
Playary is a free multi-platform program for watching free movies and listening to free music and podcasts
MystiQ
MystiQ is a free and open source powerful audio and video converter, graphical interface for FFmpeg
Curlew
Curlew is a free and open source easy-to-use audio and video converter for Linux
Glide
Glide is a free and open source, simple and minimalistic media player