accentology
noun
ac·cent·ol·o·gy ˌak-ˌsen-ˈtä-lə-jē 
linguistics
: the study of accentuation in language : a system of accentuation in a particular language
The book also gives a bibliography, listing key books and articles of interest to students of Serbo-Croatian accentology.
Thomas J. Butler, General Linguistics, 1972
Thomas J. Butler, General Linguistics, 1972 accentological
ˌak-ˌsen-tə-ˈlä-ji-kəl
adjective accentological studies
accentologist
ˌak-ˌsen-ˈtä-lə-jist
noun plural accentologists
Various accentologists have told me how hard it is to teach native speakers to become aware of the prosodic distinctions in their own dialects and thereby to teach them to read and write accented materials for any purpose. Horace G. Lunt, Language, September 1970
Horace G. Lunt, Language, September 1970 
Word History
Etymology
accent entry 1 + -o- + -logy (after Russian aktsentologiya or German Accentologie)
First Known Use
1881, in the meaning defined above