[sixstringtheory]

Awesome project, thank you to the author!

I see a lot of folks asking about resources to learn the ideas in this tool, so I’ll recommend the Guitar Grimoire series. Granted they are more reference-type books, but each one has a good introductory chapter that I found taught the theory in an accessible way to me. I picked up the Scales volume first and have gathered more over the years, like the practice exercise edition, but don’t use them much these days (it’s been like 15 years now :)