To learn G.E.M. 鄧紫棋 - 龍捲風 chords, your practice should emphasize these chord progressions: Bm, G, A, D and Bm. Set your pace at 72 BPM initially and then sync up with the song's BPM of 144. Fine-tune the capo based on your vocal range, ensuring it complements the key of D Major.