
Description: LilyPond is an open source music engraving program that produces publication-quality sheet music. It is cross-platform and used by musicians, music students, composers, and engravers to create professional music scores.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: ABCEditor is a free open source music notation software for Windows. It allows you to create, edit, play back, and print sheet music using the ABC music notation format. Useful for musicians and composers to write and arrange songs.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API