Thanks for the help.
As a follow up question, can someone tell me where exactly these two hymns are said according to the rite in their respective Orthodox jurisdiction? For the Coptic Orthodox Church, these two hymns are said in a procession during the liturgy before the gospel during the Resurrection Feast up to the Ascension Feast. What do the other Orthodox Churches do?
Additionally, does anyone have any information on the Greek Orthodox of Alexandria? I emailed their official site at http://www.patriarchateofalexandria.com
and I did not get an answer. I am looking for information on their 113th patriarch Kallinikos (1858-1861). I think this is where these hymns crossed paths in the two Alexandrian Orthodox jurisdictions but I don't have any corroborating evidence. Any help would be greatly appreciated.