Someone sent a PM asking if I know of a good Zambra tutorial. I don't, but I also haven't tried to find one. I learned mostly just from listening carefully to recordings that I like and then finding how to replicate what I was hearing. That method can take a lot more time than following a good tutorial, but the extra work involved in discovering how to play something on my own seems to reinforce what I eventually learn, so that I remember it better. There also is a certain sense of accomplishment that doesn't exist where someone else shows the way. (The method also is consistent with the stubbornness most men have about things like refusing to ask for directions when we are lost - or even admitting that we are lost.)
Even though I don't know of a tutorial that could take someone who knows nothing about playing Zambras to playing well, I did remember seeing this Juan Serrano introductory video that could at least help someone get started.
-Bob
