Please Read: Use these tools at your own discretion. While I'm not affiliated with GuitarApp or musictheory.net, both offer free access for educators (so I thought it'd be nice to share). I've personally tested them out, they work seamlessly. Please let me know if you're having any trouble.  As always, thanks for supporting independent musicians!

Shout out to the developer at GuitarApp.  I found this helpful tool to get you practicing rhythm! Contact me any time for assistance. I'm happy to help.

Another awesome tool to help with understanding music theory! There are loads of exercises. Hit the home button on the top left to access. Thanks musictheory.net for years of service to students! 

I thought this would be cool for accordion players. Want to find out the keys on your instrument? Try this tuner and find out!