Great music from this Brazilian composer/pianist/guitarist. The guitars were 10-string and 14-string acoustics. He also played other instruments, wood flutes. It may have been Naná Vasconcelos on percussion and berimbau. Vocalising from both. Interesting stuff. Possible other musicians: Nando Carneiro acoustic guitar/synth and Nivaldo Ornelas soprano/tenor sax/flutes but uncertain about this.