Noted! Thank you! I'm planning on building a Duolingo style spaced repetition system for this. I really wanted to work on more modules like Intervals and Triads

Noted! Thank you! I'm planning on building a Duolingo style spaced repetition system for this. I really wanted to work on more modules like Intervals and Triads (for selfish reasons) but enough people have made the point you made that I think its logical to address the issue.