Egberto Gismonti & Nana Vasconcelos - Duas Vozes (1984)

ECM's two Brazilian masters came together for their second duo recording in June 1984, and started the album in a way that was certainly memorable.  It's probably one of the most avant-garde renderings of Ary Barroso's Aquarela Do Brasil ever attempted - see here for a more recognisable version.  This one only reveals itself about halfway through, and features a small amount of the lyrics at the end.

The rest of the material is mostly Gismonti's, and showcases his typically nimble multi-string guitar technique in both lightning fast runs and percussive attacks.  There's also a traditional tune, the atmospheric Tomarapeba, and the closing track is by Vasconcelos.  His percussive range is as striking as ever, adding up to an inspired collaboration.

link
pw:sgtg

Egberto Gismonti at SGTG: 
Academia Da Danças
Sol De Meio Dia 
Circense
Sanfona
Dança Dos Escravos
In Montreal (with Charlie Haden)