To learn Sung Si-Kyung - 좋을텐데 chords, anchor your practice on these foundational sequence of chords - Cm, Bb, A, E, Ebm, Ab, Dbm, Ab, Gm, Fm, Bb and Eb. Ease into the song by practicing at 47 BPM before reaching the track's full tempo of 95 BPM. Given the song's key of Bb Major, adjust the capo to align with your vocal range and chord preference.