To learn Skillet - Monster chords, your first step should be understanding these chords - Ab, F, C, F, C, Ab, C, Eb, Gm, C, Eb and Ab in sequence. Start with a comfortable 67 BPM and as you become proficient, aim for the song's BPM of 135. With an eye on the song's key Eb Major, set the capo that best suits your vocal range.