To start learning 宋冬野 - 知道 chords, centre your learning around these elemetal chords sequence: A, B, E, A, F#m, E, F#m and B. Start with a comfortable 50 BPM and as you become proficient, aim for the song's BPM of 100. With the song's key of A Major, set your capo to fit your vocal range and chord choice.