Effect of tone sandhi on singing in Chaozhou dialect

The Chaozhou dialect is a branch of Southern Min Chinese with eight tones and a wealth of tone sandhi. In this paper we explore whether there is a tone-sandhi effect on melodic construction and tone realisation in Chaozhou song, using a corpus analysis and observational study. Outcomes from the corpus analysis show a strikingly higher rate of tone-melody matching in Sandhi dataset than that in Citation dataset. In the observational study, we found significant differences between sandhi form and citation form concerning tones /53/ and /21/, but no significant difference for tones /35/ and /213/. Results suggest that falling tones in the final position of a phrase tended to exhibit a larger contoural range, and that tones in non-final positions may be more affected by the pitches of tones that precede or follow them.