Let's start jamming G.E.M. 鄧紫棋 - Why chords, familiarize yourself with these chords - Am, Em, G, C, A and Em in sequence. I suggest starting at a calm pace of 49 BPM, and as you gain confidence, approach the song's BPM of 99. With G Major as the song's key, tweak the capo to cater to your vocal pitch and chord likes.