To learn Boboy - Janji Seorang Kasih chords, these are the chords to practise in sequence: G#m, A, B, E, A, E, C#m and B. Start with a comfortable 57 BPM and as you become proficient, aim for the song's BPM of 114. Considering your vocal pitch and chord choices, adjust the capo in accordance with the key: B Major.