Samba and Bossa Nova are some known styles among a few others that originated in Brazil.
festivals
samba is used for the background music of carnivals the carnivals express what brazil is like
They have African and European music in the county of Brazil
dance to different type of music like samba and dance and get into costumes
I am brazillian and the type of music we have is funk carioca, pagode, samba, brega, rock brasileiro, musica gaucha and many many many more
Make You Feel My Love Adele
Usually ethnic music. The zither is used in pop music.
Mostly jazz and classical but it is pretty much used in every type of music.
The Somba and Bossa Nova are two types of music that are popular in Brazil. Brazil has many other influences for its music from other countries and from Africa.
I believe that folk music is used for the same thing that every other type of music is used for, listening.
Spanish music
samba music came from Brazil