I have heard of it, but I cannot read it...
A thing I have noticed in Britain is, they do not nasalize, like the words come from the mouth, almost "falling" out of the mouth, with very little effort. like they have a "potato in the mouth". but I am not sure if there is any theoretical concept to explain this, like to say, that the tongue/mouth/voice have a certain position.
For example in Spanish it is quite easy - you have to learn the "erre" (rolled r). If you speak with this, the rest of the pronunciation comes as a result, because you have to have your tongue in a certain position and to speak in a certain "tone" (is that the right word?) in order to be always ready to pronounce this.
It is why when a child is learning to speak, it is assumed that when they can say the "erre", the rest of their pronunciation is correct, and that this is the last thing they learn to say.
So my question, is there a similar "short-hand" way in British English, to learn the basics of the pronunciation?