Release :) i dont know them either and i was doing the opposite at first but the sound was nothing like the one on the video...let ur ears guide u too :)
I just love HARRY POTTER 😍so I am learning to play this😊 It is hard but I am trying to do it 😥 Learning all the notes by myself😣 But I think I will learn this fully in a month,🤓 Hope so!!🙃