The following article has some interesting ideas about cantillation:
Lode, Lars. "A Discourse Perspective on the Significance of the
Masoretic Accents." In Biblical Hebrew and Discourse Linguistics, ed.
Robert D. Bergen. 155-172. Texas: Summer Institute of Linguistics,
1994.
In my research it would seem that there is a strong correlation
between clause boundaries and disjunctive accents, but I think Vince
has already suggested this. Probably nothing new in this observation.
With regards,
Matthew Anstey
re: Significance of Cantillation,
Matthew Anstey, 02/03/2000