EN
The present paper endeavours to survey the historic line of the Byzantine music in the territory of Slovakia of today, focusing on the 'dark centuries' - the 10th to 14th centuries. It starts with the introduction of Byzantine culture to the Moravian State in 9th century, and includes the brief description of extant liturgical fragments dated from 10th to 15th centuries. The lack of substantial resources presses us upon relying on the indirect historical references in order to prove the presence of the Eastern faithful during the old Hungarian kingdom, thus trying to detect marginal information regarding the liturgical chant at least.