So, over the summer I was reading a book on the Bossa Nova and was starting to check out Brazillian music, Bossa Nova in particular. I met a guy who was really into Brazillian music and he reccommened Os Mutantes to me, they were sort of the defining Brazillian rock group from the 60's (the book had mentioned them in passing). So, after a couple of months, I finally obtained a copy of their debut CD ("Mutantes"), and it is AMAZING! The influence of American psychadelia on Os Mutantes is apparent, and they pay tribute to people like the Rolling Stones and the Animals. However, they manage to be completely original and creative while tipping their hats to their influences. "Mutantes" is the most exciting album I've heard in a long time, there is not a single moment where things get dull or where the creative energy lulls. At any moment you could go from a psych-rock freak out to the sound of car horns at rush hour, from a solitary funky bassline into a lonely folk ballad. I highly reccommend this group to any and all fans of music, it's very rare when a release is as progressive (and this album is from the 60's! Still sounds fresh) and acessible as this is.