I just stumbled upon a marvelous wealth of interactive tools for ear training, theory, musicianship, and much more at The String Academy of Wisconsin‘s website!
I’ve compiled a list of my favorite very handy online trainers that I plan to use enthusiastically and incorporate into lessons from now on! 
You can even have kids take it home for homework and print out a progress report!
This list can always be found under the Bio and More –> Violin Lessons drop-down menus at the top of my site. Check it out!
