I want to share this iOS apps for guitar players with you. They will be online viewable for 48 hours. For a longer period in the App store Search for “John Gellecum”
View in iPad or iPhone solution in your browser.
Let me know what you think of it please. https://www.mmbook.nl/colscales.html https://www.mmbook.nl/colchords.html
One thing I notice is the chord buttons can revert to the arrow pointer and you have to move the mouse.
Probably not an issue on iOS but wonder if this is because your elements have text selection allowed.
Search for “John Gellecum”