Five's Company: Pentatonic-Based Accompaniment Parts
You know how to pull out pentatonic scales in your leads, but how about your rhythm playing?
The pentatonic scale most definitely has a place in the lead arsenal of any guitar player, but does it have a role in rhythm work? Clearly, as heard from players like Jimi Hendrix, Billy Gibbons, John Frusciante and Tom Morello, among others, it does.
In fact, regardless of your style, there’s a wealth of single-note riffs, double-stop moves, and chordal embellishments lurking within the scale. Squeeze these sounds between the cracks of basic chord shapes and you’re instantly a more interesting rhythm player.
Before we get to the riffs, let’s examine the nuts and bolts. Like many other scales, the pentatonic comes in two basic flavors: major and minor. To compare, E major pentatonic is built from the 1st, 2nd, 3rd, 5th, and 6th notes of the E major scale (E–Fs–Gs–A–B–Cs–Ds), while E minor pentatonic is built from the 1st, f3rd, 4th, 5th, and f7th tones of the E minor scale (E–Fs–G–A–B–C–D).
Minor pentatonic is most commonly used in blues and rock; major pentatonic, in R&B and country. Regardless of style, these scales sound most effective when played in short note groupings, on small pockets of the fretboard, generally spanning no more than three strings. Keep this in mind as you sample the following figures.
Many blues riffs are derived from pentatonic bass lines that imitate a pianist’s left-hand playing. Fig. 1, a nod to the fingerstyle country blues of legends like Blind Lemon Jefferson and Blind Blake, is sculpted from an E major pentatonic bass line. Check Fig. 2 for a more contemporary blues application—an E minor pentatonic riff inspired by the Buddy Guy and Stevie Ray Vaughan versions of “Mary Had a Little Lamb.”
Countless rock riffs are based upon fragments of pentatonic scales. The next few passages, however, are examples featuring the entire five-note scale: Jimi Hendrix’s signature line in “Purple Haze” [Fig. 3] and Joe Walsh’s spiraling moves in the Eagles’ “Life in the Fast Lane” [Fig. 4] are both constructed from the E minor pentatonic scale.
Fig. 5 is similar to the wicked riff that kicks off Guns N’ Roses’ “Welcome to the Jungle,” in which guitarist Slash rips through the entire B minor pentatonic scale (B–D–E–Fs–A) using pedal point—repeating the 4th-fret B as notes change below. Meanwhile, for an example of a fragmented pentatonic riff, look to Fig. 6, modeled after Rage Against the Machine’s Fs minor pentatonic (Fs–A–B–Cs–E) gem “Guerrilla Radio.”
Many great funk figures contain pentatonic notes played between the cracks of chord stabs and string mutes. Approximated in Fig. 7, for example, is James Brown’s E minor pentatonic–based “Mother Popcorn.” And Fig. 8 illustrates a G minor pentatonic (G–Bf–C–D–F) funk riff reminiscent of Leo Nocentelli’s work in the Meters’ “Look-Ka Py Py.”
Lots of late-’70s and early-’80s rock classics revolve around double-stop pentatonic riffs. Inspired by ZZ Top’s “Sharp Dressed Man,” Fig. 9 contains some 4ths within the A minor pentatonic scale (A–C–D–E–G). Fig. 10, inspired by the riffs of groups like Kansas and Styx, shows a linear example, with note pairs moved along strings 3–4 against an open-A drone.
But perhaps the ultimate example of double-stop pentatonic in rock is Mark Knopfler’s fingerpicking on Dire Straits’ mega-hit “Money for Nothing,” composed primarily of 4ths and 5ths within G minor pentatonic [Fig. 11].
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