To learn Polbo - Negra chords, your first step should be understanding these chords - Ebm, Ab, Db, Ab, Gb, C, Bb, C, B, Db and B in sequence. Begin your practice at a relaxed 72 BPM, then work your way up to the song's BPM of 144. Considering your vocal pitch and chord choices, adjust the capo in accordance with the key: D Minor.