[uptownfunk]

Sure, here is an example of the rudram chanted in ghanam mode, there is a brief example given in the beginning similar to what i explained in my above comment. This is from the yajur Veda I believe, some scholars date these chants close to 3000 years old. https://youtu.be/5VP-NTPEjGg

[ing33k]

Another video, 103 year old Ambattur Ganapadigal chanting ghanam:

https://www.youtube.com/watch?v=seCJU0zwHpY

[uptownfunk]

A ghanam of the famous “Tamaso ma jyotir gamaya” of the ancient brihadaranyaka.