Mixxx - The most powerful free DJ software in the world.
Until AM - DJ in your browser with this SoundCloud music mixer
VirtualDJ - Virtual DJ Software - MP3 and Video mix software for DJs
Songlio - Free musical guessing game: race friends to name that tune
Guitarix - Guitarix is a simple Linux Rock Guitar Amplifier for https://alternativeto.
Playlistify - Make Spotify playlists from 1001tracklists & setlist.fm sets