Every Noise at Once
The bottom of the page is a little weird. 
"Byzantine" is not Russian Liturgical Music.This is Byzantine Chant: https://youtu.be/Bs--5yMg1g0Also, Georgian Polyphony did not involve strings as a general rule. There were regional exceptions, but early Slavic polyphony was generally a capella.Here's a good example of Gerogian polyphony: https://v-s.mobi/elia-lrdei-princeton-georgian-choirs-fall-2...Sorry to nitpick, but I hate to see a fascinating corner of music ignored. Happy Listening!