To learn 古内東子 - 大丈夫 chords, grasp the musical fabric of the song with this sequence - F#m, Em, A, D, G, A, C and Bm of chords. For best results, commence at 42 BPM and progress to the song's BPM of 84. Considering the song's key of D Major, position your capo to suit your vocal and chord preferences.