These differences, semantically, do not go beyond phonetic, intonational, and lexical phenomena. The first part of the reduplicant bears contrastive intonational stress. This jargon babbling with intonational contours the language being learned. The fine intonational differences between different instances of the same swara are called [[sruti (music)|srutis]]. A boundary tone can also begin a sentence or intonational phrase. "The structure of intonational meaning". Further details of intonational tones are given below. With Janet Pierrehumbert, she developed a theoretical model of intonational meaning. That also applies if the accent is intonational. In addition to the accent on words, intonational tones can also be heard in Turkish.