Scales - guide for beginners

Were I could find some good explanations for begginer of scales in byzantine church music with sound examples?

Some related links are here, I am sure there are more out there but didn't have time to look:

In English:
http://www.kelfar.net/orthodoxiaradio/Modes.html (by subdeacon Karim El Far)

In Greek:
http://music.analogion.net/Klimakes/index.html (by Panayotis Papadimitriou)

I think the best way to learn scales though (at least how I learned) is to just listen to chanting and be informed on what you're listening to (it doesnt help if you have no idea what mode a piece is in).