Hey guys ..i dont know if any of you have seen the live acoustic version that ed sheeran does of 'you need me i dont need you' . Im totally amazed with it

Iv been playing around with drop d tuning and the song

He seems to have his guitar tuned down half a step and capo on 2.

Song goes Em G A C D.. iv got the power chords down easy but he starts doing different chords up and down the neck .

Unfortunatly i dont think im at the stage yet where i can figure out what he is doing ..anyone know what he is doing or should i bust out my caged neck map and try plot a few chords around the neck in drop d