To jam and learn the simple chords for Ariableyes - Ao No Kajitsu chords, practice playing Bbm, C, Fm, C, Fm, Ab, Bbm, Ab and C in sequence. Kick off your practice at a gentle 75 BPM, then escalate to the song's tempo of 150 BPM. Align the capo with your vocal depth and chord choice, bearing in mind the song's original key: Db Major.