Does this exist? For music theory online courses, I would like a simple interface that allows students to put notes on a staff, like in the exercises on teoria.com. It should be able to plug into my LMS (maybe Google Forms?) and allow students to (at minimum) spell chords and (even better) complete melodic dictation.
If this does not exist, please pass this message along to the good people at Noteflight or other code monkeys who might want to make some music professors very happy.