I don't know for the orthodoxians, but in the roman catholic church on formal occasions we still sing "responsorial psalms", where the lector reads the psalm and a phrase of it is repeated by the assistants, based on the same schemes or musical styles that were stated on the middle age following the "Gregorian style". As the article says, this way of "singing" the Gospel was developed to make people participate and understand it, but it was made some centuries before 16th century!

Anyway, is good to know that, at least for the afroamericans, the option of being "afro-gaelics" is real!.

Let me remember to you as well a character on a book called "The Blues against the Greys" by the canadian author William Camus (1923-...). The character is a black boy called Joshua Ponce de León (and that's a spanish surname!), that gets listed on the Union Army on the Secession American War, and as he claims for his scottish origins, he becomes a kilted piper on a highland regiment. It's an interesting coincidence, don't u think?

¡Salud!

T O N O