R. A. At’ayan / Vrej N Nersessian / Vrej N. Nersessian
Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Translated into English by N.V. Nersessian.This study traces the origin and development of the Armenian system of notation called Khazs, and re-creates the tunes of the numerous chants and songs composed over the centuries.