To learn 4Minute - (미쳐) Crazy chords, focus on the sequence of these chords: Eb, F, Gm, Bb, C, G, Gm, G, F, A and G. I suggest starting at a calm pace of 43 BPM, and as you gain confidence, approach the song's BPM of 87. Align the capo with your vocal depth and chord choice, bearing in mind the song's original key: G Minor.