
Description: Avid Sibelius is a music notation software used by composers, arrangers, publishers, educators, and students to create, edit, and print sheet music. It provides tools for writing, editing, playing back, and printing scores.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

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: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API