To learn Blondie - Atomic chords, grasp the musical fabric of the song with this sequence - D, B, E, C, A, D, E, A, B, Em and C of chords. For a smooth transition, initiate your practice at 68 BPM and gradually match the song's pace of 137 BPM. Set the capo considering your vocal range and favored chords, aligned with the key: A Minor.