Some of the things I've written might seem controversial, but in my mind they're not even the least bit controversial.
Before the Portuguese went to Brazil, there was just the native inhabitants and Anacondas there making music; that means any music coming from Brazil was made by the Native South Americans, and Anacondas. After the Portuguese it's possible to have included their music with the Anacondas, and the native inhabitants. I don't think that music at all resembled present day Brazilian music.
Something had to be added to the Anacondas, Native Americans, plus the Portuguese music to make the music that is so common in Brazil today. Could it have come in on those slave ships I see on the horizon? Could it have sounded like this.
https://www.youtube.com/watch?v=-KznlNRyjUg&t=44s
The interesting thing about this music is that although it sounds African, it's not so common on that continent. I "theorized" that some music left the continent of Africa permanently.
First of all, before slavery, Africa existed in "villages", not cities; villages were much smaller. Africans identified themselves by tribe and village. Nigeria was one of the few places with big cities and armies, Nigeria also did most of the slave capturing.
Slaves were imprisoned in a factory while awaiting shipment. Current estimates are that about 12 million to 12.8 million Africans were shipped across the Atlantic over a span of 400 years. That's a lot of slaves and a lot of "villages".
Each village had it's on peculiar rhythms and dances. It stands to reason that some of those rhythms and dances no longer exist on the continent of Africa, but only exist in this hemisphere because the entire village was transported over here on a slave ship.
My ears have detected rhythms that are common in Brazilian music which are African in nature, but are uncommon on the continent of Africa. If those rhythms came from Africa, but are no longer heard on that continent, what other explanation could there be?
We can appreciate the music, but some find it inappropriate to examine the people who made the music; is that so? Makes no sense to me.