
Description: Aria Maestosa is a free, open source MIDI sequencer and editor for Windows. It allows you to compose, record, and edit MIDI files with a user-friendly interface and powerful editing capabilities.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Canorus is an open-source music score editor for Linux. It allows users to create, edit, print, and playback music scores. Key features include MIDI input, WYSIWYG editing, support for guitar tablature, and MusicXML import/export.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API