by Prokopis Skordis Posted on 23/01/2019 17:26 String Systems / Lead Guitar Lessons This is lesson 3 from the original 2016 SFS Pentatonics Crash Course. Enjoy, learn, and see where the SFS revolution started ??.Here are the rest of the lessons in this series: LESSON 1 - LESSON 2 - LESSON 4 Subscribe on YouTube to watch more lessons 😎🎸 100% Free Video Course Jump Freely Around The Guitar Fretboard SFS FretboardSecrets 2.0 Join more than 16,500 guitar players who have learned using this system 😎🎸