08.03.1957.
A candidate in History of Art. In 1981 she graduated from the faculty of Musicology (Folklore specialty) at the Tbilisi State Conservatoire. Over years  she worked at the Department of the Musical Folklore of the Tbilisi State Conservatoire, a head of the Chair in Music at the Institute of Culture. Her scientific work is related to the issue of hymnography. Her thesis for seeking a candidate’s degree was “Kartuli rva khmis sistema da misi kilo-intonatsiuri safudzveli” (Georgian eight voice system and its mode-intonation basement).

Ositashvili’s main works:

Kartuli rva khmis sistema da misi kilo-intonatsiuri safudzveli” (Georgian eight voice system and its mode-intonation basement).(1983). In the collection of scientific works: Shaverzashvili, Aleksandre (editor). Kartuli khalkhuri musikis kilo, melodika da ritmi (Mode, melody and rhythm of the Georgian music): 93-114. Tbilisi. Tbilisi State Conservatoire (in Georgian, with Russian resume)
Kartuli galobis erti problemis shesakheb (On one issue of the Georgian chanting). (1986). Magazine “Sabchota Khelovneba”, #3: 75-84 (in Georgian)

“Chrelebis” shestsavlis zogierti sakitkhi (Some issues of the research of the “Chreli”). (1991). In the collection: Tsurtsumia, Rusudan (editor). Dzveli kartuli profesiuli musika. Istoriisa da teoriis sakitkhebi (Ancient Georgian music. Issues of history and theory): 93-111. Tbilisi: Tbilisi State Conservatoire (in Georgian)
Dzveli kartuli profesiuli musikis zogierti taviseburebis shesakheb (On some peculiarities of the ancient Georgian professional music). (2003). Tsurtsumia, Rusudan and jordania, Joseph (editors). The First International Symposium on Traditional Polyphony: 470-480. Tbilisi: International Research Center for Traditional Polyphony of the Tbilisi State Coonservatoire (in Georgian and English languages)
Kartuli saero da sasuliero mravalkhmianobis urtiertkavshiris shesakheb (On the interrelations of the Georgian secular and sacred music). (2005). Tsurtsumia, Rusudan and Jordania, Joseph (editors). The Second International Symposium on Traditional Polyphony: 430-444. Tbilisi: International Research Center for Traditional Polyphony of the Tbilisi State Coonservatoire (in Georgian and English languages)