I know many work song styles (specifically call and response style) are derived from Africa... since 2021 is the year of the Sea Shanty, how did this become the case?
You might be interested in my recent answer on the origins of sea shanties, which discusses this a bit. The main point is that there were a lot of African-American/Afro-Caribbean people working alongside and on ships, so the adoption of many of their musical stylings came about quite naturally.