Change in Buchan vowel harmony

English is not typically considered to be a vowel harmony language, and yet one of its cousins, Buchan Scots, clearly shows vowel-harmonic patterns. This involves type height which blocked by certain consonants consonant clusters (which do form natural class). The front /ɪ/ has historically functioned as high but seems have changed into non-high in the inland dialectal variant. article considers whether this change also occurred costal variant dialect. From newly collected data, I observe that continues behave Scots spoken on coast. However, there are some indications group blocking shifting include simple nasals /r/. While been documented varieties, /r/ not.