To learn Sarcofago - Rotting chords, your first step should be understanding these chords - Em, Abm, Gm, C, Bm, B, F and C in sequence. For a smooth transition, initiate your practice at 62 BPM and gradually match the song's pace of 125 BPM. With C Minor as the song's key, tweak the capo to cater to your vocal pitch and chord likes.