The minor pentatonic scale for metal, rock and blues guitarists is an essential 5 note scale that forms the foundation of most modern guitar music. Although it only has five notes it has been combined in many different ways to yield some amazing music. From blues and rock players like Hendrix and Vaughan to modern masters like Eric Johnson and Zakk Wylde the pentatonic scale has been the basis for many of their greatest guitar licks and solos. Today's guitar lick is comprised of a 5 note grouped sequence made up of notes from the A Minor Pentatonic scale.