If you want a less conventional -- but entertaining as well as educational -- look at Modes, check out my essay called Uncontrite Modal Folker:
updated by @ken-hulme: 10/18/22 12:19:02PM
Hey, that's so nice of you to let me know how it helped you! Makes my day.
If anyone wants to check it out, here's a link:
Hi Strumelia, When I first heard there were these things called modes, I looked them up, but didn’t understand a thing, I spent the next two years periodically buying books, watching YouTube tutorials and reading online trying to understand the concept, to no avail. Then I came across a link you provided somewhere in FOTMD to your blog, and all I can do is scream THANK YOU!!! Your explanation is brilliant and simple at the same time. ( I definitely needed simple.) I am so happy that I found your posts. If I had found them earlier it would have saved me hours and hours of wading through torturous explanations that I never understood.
best regards, Linda