I have a question about songs from Thrace: https://www.youtube.com/watch?v=6wxWIQcppXk

I often hear some which mention a guy named Stergious or Stergiou... All about the same guy, is this a tale? I found a translation for the first part of the song, Stergious pismanipsi.
http://www.stixoi.info/stixoi.php?in...ils&t_id=19943

Could somebody translate the other two parts of the video, or at least say what it's about exactly? I would love to know what pismanipsi and xepismanipsi mean. I assume it is Thracian dialect?