Linux Show Player is a free cue player, mainly intended for sound-playback in stage productions. The goal is to provide a complete playback software for musical plays, theater shows and similar.
Castopod is a free and open-source hosting platform made for podcasters. Engage and interact with your audience whilst keeping control over your content.
Soundbound, One stop for all your music, player, library, download needs. Supports using 3rd party sources to download from spotify, youtube and so many more.