It looks like you're new here. If you want to get involved, click one of these buttons!
I assure you that the verses of the cymbals is chanted in many churches during the weekday Lent liturgies because those attending do not know "Kiriye Eleyson". There is absolutely nothing "wrong" with that.
1) A bishop is receiving greetings after the sermon on the Nativity Feast. The deacons decide to chant doxologies for the Nativity along with other chants from Matins. The rite of the Nativity states nowhere that those can be said at that time. Now what? Did the deacons err because they did that? Should they have just stayed silent? Should the bishop have quickly silenced them because the rites do not state that?
2) The priest decides to pray inaudibly for 20 minutes or so after the offeratory. The deacons don't know Alle- Al Qurban or Api Nav Shopi. They do know the Hymn of the Blessing and Hail Mary. Do they say those hymns or just allow for silence for twenty minutes?
3) A bishop sets up the Aspasmos Adam and Watos on a Feast day. The deacons don't know the appropriate Aspasmos and perhaps do not have enough experience to be able to install the tune on the appropriate Aspasmos. The bishop knows they don't know the appropriate Aspasmos and knows they will chant the year-round ones. Has the bishop erred in this case? Have the deacons just committed a flagrant violation of the rites of the church?
Since you place great importance on sources. Please cite your sources for what you stated above. Where does it say you can add verses for saints on Feasts such as the Nativity? How about doxologies? What is your source for that?
And what is a quality source anyhow? In academia we consider peer reviewed articles from quality journals to be good sources. How would you define a quality source here? Be careful how you answer.
My point is that not all of the rites of the church are as absolute as you present them.
You were critical of saying a hymn that was already said earlier in the Liturgy but aren't the doxologies already prayed in Matins? What if the deacons said Glory to You O Lord Sabaoth, a hymn for Matins, after the Gospel response.
You said: "not ..................How about all of the hymns that are chanted in English and Arabic during communion? Did the "fathers" state that we can say these? Did they approve each one by name or make a blanket written statement saying that any future hymns composed for communion are acceptable? Who are the "fathers" anyway? Are they defined by a specific time period? Was every hymn written or approved by the "fathers"?
The cymbals are not played during the weekdays. What, then, gives the jurisdiction to chant the verses of the CYMBALS (which are chanted in a joyful tune annually)? Is not silence more fitting for the day than a joyful hymn?