The document provides information about Acritic songs, which are a genre of folk songs from the Byzantine Empire that tell stories of the Akrites, warriors who defended the eastern borders. Specifically: - Acritic songs celebrate the bravery of individual Akrites and recount their heroic deeds against enemies. - The oldest and most famous Acritic song is the Epic of Digenis Akritas from the 12th century, which tells the story of the semi-legendary hero Digenis Akritas. - Digenis Akritas features prominently in many Acritic songs that depict his exploits and bravery in battle, as well as his eventual death confrontation with Death itself.