Stave'n'Tabs - iOS and macOS notation and tablature editor with MIDI and MusicXML files support and chromatic...

SFML - SFML provides a simple interface to the various components of your PC, to ease the development of games and multimedia applications. It is composed of five modules: system, window, graphics, audio and network.

Tonelib JAM - Create, edit, print and listen to tablature and guitar sheet music

SDL - Simple DirectMedia Layer is a cross-platform multimedia library designed to provide low level...

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!

raylib - Cross-platform, open-source game development library in C.