To start learning Thang Tawng - Legacy chords, build your understanding on these basic chords - A, D, E, A, E, F#m, D, F#m and E in sequence. I suggest starting at a calm pace of 65 BPM, and as you gain confidence, approach the song's BPM of 130. With an eye on the song's key A Major, set the capo that best suits your vocal range.