
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: Denemo is an open-source music notation editor for Linux that allows you to quickly and easily create musical scores. It supports standard notation, guitar tablature, and lyrics.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API