I have noticed that in all the old music books in which I have found the apolytikion for St. Demetrios, the words "Μεγαλομάρτυς Δημήτριε" / "Great Martyr Demetrios" are missing. Does anyone know why? Was his name added to this hymn at some point? I noticed this first in Mousiki Kypseli a while back, and thought maybe it was just a variation in that book. But now I looked in some more books & noticed the same thing in: Doxastarion of Petros ed. Kiltzanidou, Syllogi Idiomelon & Apolytikion by Manuil / Hourmouzios, and Mousikon Apanthisma