Glad to have you on board. I'm sure you will find many useful tools at this site to help you on your path of playing guitar with your brother. I just went to youtube and listened to him sing " I Believe" and it was excellent. He has a real God given talent. If you need anything, all ya gotta do is ask. All of the instructors are great. They all have something to offer in your learning process, so try to check them all out. Good luck an I wish you and your brother all of the singing and playing in the world.
Duck