THE PHONETIC ASSIMILATION RHYTHM ACCOTDING TO SIBAWAYH D. (180 AH)
Keywords:Rhythm, phonemic assimilation, Sibawayh, merging, substitution, inflexion, vowelization, reduplication.
Phonetic and Qur'anic studies have both contributed to the development of the idea that linguistic phenomena associated with the rule of ease and avoidance of weight should be investigated. This indicates that sounds are subjected to continuous changes as a result of the principle of effect and affect.The goal is to produce harmony and rhythm that affects the recipient, and sounds interact with one other in the same way that live creatures do, resulting in audible changes that follow a properly designed system. There are certain fixed and emergency rules which govern each linguistic formation; as a result of the performative structure's exposure to conditions and factors that determine the nature of words and how they were formulated in a tight performative construction. In accordance with the rule of assimilation, phenomena such as merging, substitution,inflexion, vocalization, movements following, and others emerged. These changes are impactful rhythmic manifestations that are subject to a balanced system derived from vocal harmony and positional proportionality when dealing with sounds. Thus, exploding the inexhaustible energies of language over time is renewed and adapted with its sounds and the consistency of its expressive components according to miraculous performance conditions.The current investigation aims to reveal the rhythm of phonemic assimilation at Sibawayh who diet at ( 180 AH) and those who came after him among the linguists and scholars of Quranic performance.Actually, Sibawayh was one of the first who witnessed the speech of Arabs in their various dialects, and his famous author, who represents a linguistic encyclopedia that carried several phonetic and rhythmic investigations using the rule of assimilation. The researchers found these rhythmic audio investigations in books of Qur'anic readings and shed light on examples such as merging and conversion in consonants, and inclination, reduplication and inflexion in vowels. Aside from that, he tried to clarify the rules of assimilation and its implications for rhythm. Its purpose is not to provide a narrative of the audio experiments, but rather to provide an explanation of the concept of rhythm that underlies those investigations.