To start learning 陳奕迅 - 幸福摩天輪 chords, build your understanding on these basic chords - C, Am, F, Dm, G, C, A, Dm, F and G in sequence. To master the tempo, it's wise to start at 46 BPM before aiming for the song's 92 BPM. Considering your vocal pitch and chord choices, adjust the capo in accordance with the key: C Major.