Simply Piano - Fast and fun way to learn piano
Hyper - Extensible, cross-platform terminal built on open web standards.
Melodics - Melodics is a desktop app that teaches you to play MIDI keyboards, pad controllers, and drums.
Windows Terminal - A new command line interface for Windows machines
Yousician - Learn to play music at home, at your own pace
Bidbar - Save and run Terminal commands from the Mac menu bar