Advanced Guitar Lesson 12 of 40 Posted on September 18, 2018September 21, 2018| By Bylineadmin Advanced Guitar Lesson 12 of 40 (Fretboard Logic) Fretboard Logic https://youtu.be/MNfNrz_ZU7Y… This content is for 40 Advanced Guitar Lessons members only.Log In Register Please follow and like us: