I live in Southeastern Massachusetts which has a very high Portuguese population. I am myself half Portuguese but do not speak the language. I am also a manager of a zoo gift store. We sell CD's by Putamayo. They carry alot of cultural music and I know they are also sold in Best Buy Stores. We have Brazilian Playground, which is kids music but not the annoying kind if you know what I mean! I know they also have adult Brazilian music.
try..
PUTUMAYO. Good luck!! Hope this helps.
and PS...Portuguese food is the best!! Especially Kale Soup! I am getting hungry just thinking about it!