To start learning Pre Kai Ro - 1 chords, delve into these chords sequence to get the song's feel: Db, B, Ebm, Db, Ebm, Bb and Ebm. I suggest starting at a calm pace of 75 BPM, and as you gain confidence, approach the song's BPM of 151. To match your vocal range and chord inclination, adjust the capo in line with the key: Gb Major.