Let's start jamming 陳慧珊, 許志安 - 苦口良藥 chords, practice the chord sequence Em, Bm, C, D, G, Am, G, C and G. I suggest starting at a calm pace of 51 BPM, and as you gain confidence, approach the song's BPM of 103. Considering the song's key of G Major, position your capo to suit your vocal and chord preferences.