Baltic Romani
There are three simple stop positions in the Romani language. These come from the Indo-Aryan and are maintained in every dialect of this language. The positions are as follows; labial /p/, dental /t/, and velar /k/. Along with these stop positions, there are also palatal positions which are unique to the Romani language. Specific voicing alterations have changed grammatical endings and different dialects have different ways of interpreting vowels. Some have morphed into newer versions of the Romani language and others have implemented other elements like screams.
Romani language
In a series of articles (beginning from 1982), Marcel Courthiade proposed a different kind of classification. He concentrates on the dialectal diversity of Romani in three successive strata of expansion, using the criteria of phonological and grammatical changes. Finding the common linguistic features of the dialects, he presents the historical evolution from the first stratum (the dialects closest to the Anatolian Romani of the 13th century) to the second and third strata. He also names as "pogadialects" (after the "" dialect of Great Britain) those with only a Romani vocabulary grafted into a non-Romani language (normally referred to as Para-Romani).