LMMS - Make music with a free, cross-platform tool
Stave'n'Tabs - iOS and macOS notation and tablature editor with MIDI and MusicXML files support and chromatic...
GarageBand - GarageBand is a fully equipped music creation studio for Mac
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!
Ableton Live - Ableton makes Push and Live, hardware and software for music production, creation and performance. Ableton´s products are made to inspire creative music-making.
Tonelib JAM - Create, edit, print and listen to tablature and guitar sheet music