To start learning Arashi - 素晴らしき世界 chords, build your understanding on these basic chords - F, Eb, F, Bb, Eb and Bb in sequence. Begin your practice at a relaxed 46 BPM, then work your way up to the song's BPM of 93. Adjust the capo based on your vocal range and chord preference, keeping the song's key of Bb Major in mind.