His major work is Badarak ( Divine Liturgy ) , still used today as one of the two most popular musical settings of the Armenian Church liturgy . His major work is Badarak ( Divine Liturgy ) , still used today as one of the two most popular musical settings of the Armenian Church liturgy or mass , which he started composing in 1892 but never completely finished due to the upcoming World War I. For the basis of the work he took chants sung by the eldest priests and upgraded it with typical ( `` cleaned '' of foreign influences ) Armenian music elements from his collected material . Today the best known version of Badarak is his favorite for a three-voiced male choir .