As a new member, I thank all you guys for your astute observations of Brasil 66. I have learned a lot. I was one of the lucky ones to have been old enough to vividly remember Brasil 66 exploding onto the musical scene during the summer of 1966 as a 17 year old. I believe that the voice of Lani Hall was as important as Mendes in the overall sound of Brasil 66. Apart from that, what essential ingredient made the original Brasil 66 of the first three albums the solid gold standard which later ensembles would fall short? Of course there was the tight Latin-jazz combo sound, but most importantly there was soaring, close-knit vocal harmony of 2 ladies and 3 men that would be missing in later albums. After the "Look Around" album, the vocals had 2 ladies and on occasion Mendes providing vocal support. But the vocal sound was less full--something was missing. Gone was the call and response from Lani and Janis to Sergio, Bob and Jose and then the beautiful blending of 5 voices together. I also liked the way you hear Jose Soares exhorting the group forward--as he did on the track Canto de Carnival on the Carnival lp--with words like "come on come on", "ah ha", "whoop" and "yeah". Don't get me wrong, Mendes and company produced some excellent music after Look Around such as side 2 of Fool on the Hill, Gracinha's Portuguese vocals on the Pais Tropical album, and arguably the Mendes masterpiece--the Circle Game from Primal Roots. However, decades from now the first three albums will always be considered the signature sound of Brasil 66.