Let's start jamming 林良樂 - 溫柔的慈悲 chords, practice the chord sequence Gb, Fm, Bbm, Gb, Db, Fm and Gb. I suggest starting at a calm pace of 60 BPM, and as you gain confidence, approach the song's BPM of 120. Adjust the capo based on your vocal range and chord preference, keeping the song's key of Db Major in mind.