
Description: Sekaiju is an open source MIDI sequencer and editor software for Windows. It allows users to edit MIDI files, record MIDI data, quantize and transpose notes, edit lyrics and tempo, add effects, and export MIDI files.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Zrythm is an open-source digital audio workstation designed for music production. It features unlimited audio and MIDI tracks, automation support, an intuitive user interface, and supports a wide range of plugins including VST, LV2, LADSPA, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API