To learn Nadson - Cobaia chords, grasp the musical fabric of the song with this sequence - E, B, C#m, A, B, F#m, A, C#m, B, A and B of chords. I suggest starting at a calm pace of 68 BPM, and as you gain confidence, approach the song's BPM of 137. Considering your vocal pitch and chord choices, adjust the capo in accordance with the key: E Major.