Overview of The Pentatonic Scale – Lesson 20 Brian Haner Sr. In this lesson we introduce you to the Holy Grail of rock soloing – the Pentatonic scale. Syn’s Tips THE most popular scale used in Rock, Pop, Metal, Blues, Jazz, and more! Practice alternate picking to the Metronome . A metronome is a tool used to keep perfect time at whatever pace or “tempo” you prefer much like a clock if you could adjust the speed at which the seconds change. This is a MUST if you want to achieve a good sense of time and feel. Trust me, you will be spotted from a mile away and lose many gigs if you don’t have good feel and there is no other way to achieve this.