To learn 刘文正 - 外婆的澎湖湾 chords, your practice should emphasize these chord progressions: G, C, G, D, G, C and D. I suggest starting at a calm pace of 48 BPM, and as you gain confidence, approach the song's BPM of 97. For a balanced pitch, adjust the capo with respect to your voice and the song's key: C# Major.