sentences:  The first print edition "Oktoikh notnago peniya, sirech' Osmoglasnik" was published with Kievan staff notation in 1772.It included hymns in Znamenny Chant as well as the melodic models (avtomela) for different types of hymns for each Glas.Northern Slavs in modern times often do not use the eight-tone music system—although they always do use the book "Octoechos"—rather singing all hymns in the same scale but with different melodies for each tone for each of several types of classifications of hymns.