
Description: music21 is an open-source Python toolkit for computational musicology. It can help analyze, search, and transform musical scores with features like chord identification, key detection, and more. Useful for musicians, musicologists, and researchers.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: TuxGuitar is an open-source, cross-platform guitar tablature editor software. It allows users to create and edit guitar or bass tablature as well as sheet music. Key features include multi-track editing, tablature editing tools, effects and amplifiers, MIDI importer/exporter and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API