psstt

[Daddy]

mute is lightly putting a finger on it so that if you hit it by accident it doesn't make any noise

and what do the green ones mean and what about strings with nothing on them

[Selkie]

and what do the green ones mean and what about strings with nothing on them

Green ones mean put your fingers on there and press down so when you strum they actually make the note.

And so you will strum every string cept the first one, and press down where the green is, and you shall have the almighty A CHORD!!!!!!