To start learning 劉藍溪 - 夕陽戀曲 chords, build your understanding on these basic chords - Dm, Gm, Bb, Dm, Bb, Cm and Bb in sequence. I suggest starting at a calm pace of 39 BPM, and as you gain confidence, approach the song's BPM of 80. With Bb Major as the song's key, tweak the capo to cater to your vocal pitch and chord likes.