The two perform together alongside percussionist Djalma Corrêa on each of the songs, improvising and interacting directly throughout.

[1] The album was released in Brazil under the title "Ogum Xangô" (the names of two Yoruba spirits) with a different cover.

Reviewing the album's CD reissue in 1993, Village Voice critic Robert Christgau wrote: Always ready to go further out on a beat than the other samba/bossa geniuses, they walked into a studio in 1975 and spread nine songs over 78 minutes.

With percussion up front and snatches of English on the order of 'Blue, blue sky/Blue, blue sea' reinforcing all the repetitions and nonsense syllables, the renowned lyricists were playing a rhythm game, and they won.

[3]AllMusic's John Bush believed it was by far the best album in Gil's discography.