To learn 草蜢 - 夜了 chords, your first step should be understanding these chords - C#m, F#m, E, A, G#m, C#m, B, E, C#m, F#m and B in sequence. For best results, commence at 49 BPM and progress to the song's BPM of 98. Fine-tune the capo based on your vocal range, ensuring it complements the key of E Major.