To jam and learn Jang Guen Suk - Still chords, your primary focus should be mastering these chords sequence: Bm, G, A, D, Bm, Em, A, G and D. Begin your practice at a relaxed 59 BPM, then work your way up to the song's BPM of 118. With F# Minor as the song's key, tweak the capo to cater to your vocal pitch and chord likes.