To jam and learn Folk Kemmapoom - Yub Yern chords, your primary focus should be mastering these chords sequence: A, F#m, E, A, F#m, D, A, Bm, A and D. For a smooth transition, initiate your practice at 64 BPM and gradually match the song's pace of 128 BPM. Align the capo with your vocal depth and chord choice, bearing in mind the song's original key: A Major.