Corbeled arches it’s a feature of certain pre- Columbian mesoamerican constructions and historical regional styles .
The answer is false. Ethnomusicology generally has no canon of artists and pieces, at least in the same way that Western music does. Majority of what can be classified under ethnomusicology is music passed on in a community, and most pieces have anonymous authors.
This Is False. Is Is Considered As Narration
Hope This Helps