Aaron Marshal is one of the best guitar players that have ever lived. And personally i think that is more then just a simple opinion
Theres a very small number of people in all of guitar history that can play like this dude could play by the time he was 20 years old. And playing like this is one thing, writing original music that tasteful while you play like that is another thing entirely.
Dudes understanding of what music is, its right there in the name of the project. Theres only 16 notes. Music is the space between the notes, not the notes themself.