To start learning 闫东炜 - 开心病 chords, centre your learning around these elemetal chords sequence: G, Am, F, C, E, F#m, D, A, C#, F#m, D, C# and A. Set your pace at 65 BPM initially and then sync up with the song's BPM of 131. With C Major as the song's key, tweak the capo to cater to your vocal pitch and chord likes.