
Description: gStrings is an open-source app for guitarists and bassists to organize, customize and share their tabs. It allows creating and editing tabs, adding audio, applying effects, sharing tabs with others, and more. gStrings aims to be an all-in-one solution for guitar and bass tab management.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: oTuner is a free, cross-platform auto-tuning application for musical instruments like guitar, bass, violin, and more. It listens to the sound played and gives visual feedback to help tune instruments quickly and accurately.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API