To learn Lacuna Coil - Delirium chords, your first step should be understanding these chords - G, E, B, G, Ebm, B, G and B in sequence. I suggest starting at a calm pace of 49 BPM, and as you gain confidence, approach the song's BPM of 99. Align the capo with your vocal depth and chord choice, bearing in mind the song's original key: B Minor.