Hi, I have just started to learn guitar. I am attending guitar classes my teacher had told me this Dmajor guitar E 2 fret 2 finger B 3 fret 3 finger G 2 fret 1 finger D o A played ope x E not played But from online tabs i have seen that the A string is also not played where as he had told me to play it open. When i asked to confirm he said you have to play all 5 string for major string not a problem.. Whereas the table says in B major also we dnt play A string. is it okay to play A string ? in these chords ?