To learn Hideaki Tokunaga - Jidai chords, grasp the musical fabric of the song with this sequence - A, F#m, D, A, C#, C#m and D of chords. Start with a comfortable 54 BPM and as you become proficient, aim for the song's BPM of 108. With an eye on the song's key A Major, set the capo that best suits your vocal range.