Warning Chords by Green Day

To learn Green Day - Warning chords, focus on the sequence of these chords: G, D, G, D, A, G, A, D, Gm and D. I suggest starting at a calm pace of 60 BPM, and as you gain confidence, approach the song's BPM of 121. Considering your vocal pitch and chord choices, adjust the capo in accordance with the key: D# Major.