I happened upon this cool little program from a post on the Facebook Fiddle group. I have only started to play around with it but it is very clever and and should prove useful. There is a user guide that shows how to save a local copy of the program for use when not connected to the net. The link is "randscullard.com" and click on "Go" under Interactive Circle of Fifths. You will have to paste the link into your browser as I do not know how to make it active.
I had to look up my password so I could sign on and look. It is called "Facebook Fiddlers' Association". It says it's a closed group so I think that means you have to join to see content. I do not use Facebook very often so I am sorry I can not be of much help. Eric is a member and may be a better one to ask.