Let's start jamming Kukui - 光の螺旋律 chords, practice the chord sequence Db, B, Db, B, Bbm, Gb, Ab, Gb, B, Bbm and Gb. To build a solid grasp, start slowly at 71 BPM and then match the original tempo of 142 BPM. To match your vocal range and chord inclination, adjust the capo in line with the key: Gb Major.