There are now many tools to learn chords. Here is one I made: <a href="https://chord-quiz.netlify.app/" rel="nofollow">https://chord-quiz.netlify.app/</a><p>You can connect a MIDI keyboard. It is open source: <a href="https://github.com/klavinski/chord-quiz" rel="nofollow">https://github.com/klavinski/chord-quiz</a>