The pitch structure of the Tuvinian heroic epic "Khunan-Kara"
The paper studies the modus-functional system of Tuvinian epos using the universally-grammatical method elaborated by V.V. Mazepus. The matrix array of combinability of functionals is made which describe the system of conceptions that a folk singer has about the pitch combinations allowed by the requirements of Tuvinian epic style of singing.