To jam and learn the simple chords for 誓言 - 求佛 chords, practice playing Ebm, Abm, E, Ebm, Abm and Gb in sequence. I suggest starting at a calm pace of 57 BPM, and as you gain confidence, approach the song's BPM of 115. Considering the song's key of B Major, position your capo to suit your vocal and chord preferences.