To learn Baekhyun - Diamond chords, grasp the musical fabric of the song with this sequence - Ab, Cm, Fm, Bb, Ab, Fm, Ebm and Ab of chords. To master the tempo, it's wise to start at 68 BPM before aiming for the song's 136 BPM. Considering your vocal pitch and chord choices, adjust the capo in accordance with the key: Ab Major.