Defining pronunciation question

Vital Moreira tem dedicado particular atenção ao que designou "lisboetês". Um tema que julgo cultural, política e sociologicamente interessante, e por isso dei já o meu pequeno contributo para a discussão. Reproduzo agora, adiante, um extracto do tratamento da questão da diversidade de pronunciação da língua, no caso inglês. De facto, esta discussão não deveria ser confundida com qualquer laivo de regionalismo anti versus pró lisboeta, em particular. Por se tratar de uma questão que não é exclusiva da língua portuguesa e do "lisboetês", reproduzo a definição do que os ingleses chamam Received Pronunciation e Estuary English. Interesting... no?

"The usual speech of educated people living in London and southeastern England" according to Encyclopedia Britannica. The accent that was sought after by many people in England who wanted to lose a regional accent that marked them as low-class or provincial; schools and universities often served as places for people to learn this accent. You hear a lot of this accent if you watch British-made television, although comedy shows seem most likely to use other accents.
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Daniel Jones described the phonetics of this accent when sound recording, broadcasting, and the science of phonetics itself were all new, particularly in his English Pronouncing Dictionary of 1917. RP, as it's widely known, became the first English accent to be comprehensively recorded and studied. It is traditionally the standard accent taught to foreigners. It is still a staple of linguistics textbooks, and it is still taught, though like all accents it has changed over the years, and the RP now spoken by some younger people is sometimes called things like neo-RP, Regional RP, or Advanced RP.
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In recent years a new accent has spread, a modified RP combined with features of local London English. This intermediate accent, called Estuary English (1), is spreading across England, and some aspects have been reported in Scottish cities. Almost inevitably, RP will cease to be the standard accent, and Estuary (also known to linguists as EE) will take its place."

(1) The common pronunciation of English by the younger generation in England, originating in London and the Thames Estuary but spreading widely. The name was defined by the a language teacher David Rosewarne in 1984 and it was further studied in a book by the linguist Paul Coggle in 1993. It is characterised by among other things:

-glottal stops for T at the ends of words (as in but) and between vowels (butter)
-the use of chu and ju even when stressed as in Tuesday and reduce
-rounded R
-final Y as in city having the vowel of tea not tit