Stave'n'Tabs - iOS and macOS notation and tablature editor with MIDI and MusicXML files support and chromatic...
Mixxx - The most powerful free DJ software in the world.
Chordsheet Maker - Create chord sheets or lead sheets quick and easily from your iPad. Add rhythms, endings, segno, codas and all what's necessary for your musicians to know what's your music about. Transcription made easy!
Guitarix - Guitarix is a simple Linux Rock Guitar Amplifier for https://alternativeto.
alphaTab - alphaTab is a cross platform music notation and guitar tablature rendering library.
VirtualDJ - Virtual DJ Software - MP3 and Video mix software for DJs