Extract: " [...] Right at the beginning there is a significant change. Unlike what happens on the LP, where it is the sensual voice of Betty Faria who responds to Vinicius' singing, in the compact the answer is given by Baden's own voice. The choir and musicians seem to be (and this may just be an impression) safer in performing the song. It is possible (and here's an exercise in speculation) that this audio was made during the sound passage, without the natural nervousness that the recording "for real" imposes, or as a take 2 of the song, with all more "loose" after the first shot. The most relaxed seems to be Vinicius himself, who from the beginning shows himself a little "possessed", more confident, with his voice coming out stronger, especially in the "go, go" (especially in the latter, when his excitement is clear).[...] " - Fernando Krieger