Thank you for offering this, Robert. In this case patches created/used are buffer- or delay-based, as you probably recognized. That's pretty simple stuff (in Pure Data, programming-wise) however to great musical effect: It can be recompositional.
Technical backgrounds are super easy, I'd say 100% covered by Pure Data's own documentation.
I guess all that is so simpl, that it doesn't really qualify for a blog article. However simple technique, but more complex evaluations on th bnfit of such technqus for music and sound might very well be worth a blog post. I'll give it a thought, and thank you again.