Pentatonic Scale

The pentatonic scale gets a bad rap sometimes. Maybe because it’s simple; far from the most complex scale. It’s the pop musician’s go-to scale. It’s easy to play, and easy to apply when improvising. Song in a major key? Use the major pentatonic scale. Got a nice minor vamp going on? Use the minor pentatonic scale. Ask any high school guitar player ever. These sentiments, however, are for the uninitiated.

 

jazz guitarSure, at base level the pentatonic scale is simple. It’s five notes. It’s five consonant notes. And if you use the pentatonic scale the way a lot of musicians do, it’s as simple as a scale can get. But, this is a huge oversimplification and underutilization of the vast depths that are the pentatonic scale. The pentatonic scale can be used in way more creative and interesting ways.

 

A while back, I wrote a mini-series highlighting some of the most popular jazz scales. My guess is you probably haven’t quite mastered each of those scales yet. That’s okay. I’ve been diligently practicing them every day for the past 10+ years and still haven’t mastered them. The point is, you’ll never perfect a scale. How would you even measure that? Plus, that would take all the fun out of practicing it. What helps you become a better musician is being aware of, and proficient at, many scales. There are way more scales than the five or so I wrote about previously. The more scales you have in your arsenal, or your ‘bag’ (as jazz musicians call it), the more successful you will be on the bandstand. Even in their most basic application, pentatonic scales are arguably the most versatile scales across all genres of music.

 

Scale Construction

 

Pentatonic scales do not fit into any broad categorization of scales. Since there are several pentatonic scales, they make up their own category. Many musicians are only aware of one pentatonic scale, but there are many pentatonic scales. There is one simple rule for the construction of a pentatonic scale: there must be five notes. I mean, it’s in the name.

 

The most well-known and most used pentatonic scales are the major pentatonic scale and the minor pentatonic scale. The major pentatonic scale uses the chord tones 1 2 3 5 6. The minor pentatonic scale uses the chord tones 1 b3 4 5 b7. As you can see, these two pentatonic scales are actually the same scale starting on a different note. The minor pentatonic scale is relative to the major pentatonic scale. Same concept as the major scale and its relative natural minor scale.

 

pentatonic scale

Many musicians are only aware of the major and minor pentatonic scales. They are, by far, the most prominently used pentatonic scales, across all genres of music. But there are several other useful pentatonic scales that are good to be aware of. The names I’ve chosen to use are more or less arbitrary, and just used as descriptors and so I can refer to them later in this article.

 

pentatonic scale

The C7 pentatonic scale consists of chord tones 1 2 3 5 b7. If you play this scale starting on the fifth, you get the G-6 pentatonic scale, which consists of chord tones 1 b3 4 5 6.

 

pentatonic scale

The C7(b9) pentatonic scale takes the C7 pentatonic and flats the second (same as the ninth). The chord tones are 1 b2 3 5 b7.

 

pentatonic scale

The C major (b6) pentatonic scale takes the major pentatonic scale and lowers the sixth scale degree. The chord tones are 1 2 3 5 b6.

 

There are many other pentatonic scales. The few I’ve laid out above are the ones I personally happen to use the most. Since a pentatonic scale is simply any five note scale, there are a ton more possibilities. Technically 1 b2 2 b3 3 is a pentatonic scale. Don’t know how useful that one would be. But you should do some experimenting and see if there are any pentatonic scales that are practical and that sound good to your ears.

 

Chord/Scale Relationship

 

Pentatonic scales have several applications. I mean, obviously. There are so many pentatonic scales.  Saying pentatonic scales have several applications is like saying scales in general have several applications. The major pentatonic can be played over certain chords, the dominant7 pentatonic can be played over certain chords. Likewise with the dominant7(b9) pentatonic, the major(b6) pentatonic, etc.

 

But that’s not what I’m getting at. A single pentatonic scale has multiple applications. Let’s use the major pentatonic scale as an example. The most obvious use of the major pentatonic scale is to play it over the major chord based on the root or to play it in the major key based on the root. Similar to the blues scale, you can simply blanket the pentatonic scale over a simple progression. That’s its obvious chord/scale relationship; a surface reading of. The least colorful. That’s how a lot of musicians use it. And that’s why a lot of musicians think of it as a boring scale. But there are much more creative ways to use the major pentatonic scale.

 

That’s one of the neat things about the pentatonic scale. It sounds very different depending on what chord is underneath it. It can sound simple or it can sound extremely colorful. The pentatonic scale is one scale with many different sounds.

jazz chords

 

Over a C triad or an A-7 chord, the C major pentatonic sounds correct. All the notes fit, but the chords themselves are as vanilla as it gets. Which isn’t a bad thing. You can use the same C major pentatonic over an Fmaj9 chord and the same scale ends up sounding very different. Then you can get into more colorful chords, like a Bbmaj9(#11) or a D9sus. If you play the C major pentatonic over an F#7 chord, you can get the altered sound. Very good for tension and release when resolving from dominant to tonic. As you can see, this one scale can be played convincingly over a bunch of different chords.

 

Look at the other pentatonic scales and try to figure out what chords they fit over. They usually have more than one good chord/scale relationship. For example, the Cmajor(b6) pentatonic sounds good over a Bb13(#11) chord, and also sounds good over an Fminor(major7) chord, and also works over a G13sus(b9).

 

A useful exercise is to look at a chord and try to figure out which pentatonic scale, or pentatonic scales, would sound good over that chord. Eventually, you’ll be able to do this on the fly.

 

Scale Patterns

 

As for practicing pentatonic scales, you can practice them the same way you practice most of your other scales. Think about all your major scale exercises. You can practice pentatonic scales straight, in ‘thirds’ (that aren’t really thirds), in ‘diatonic triads’ (that aren’t really diatonic triads), etc. One of the cool things about pentatonic scales is that these exercises actually sound interesting. They sound interesting because the intervals are wider and varied. Playing a scale in ‘thirds’ is actually playing a scale in a combination of thirds and fourths. Here are a few basic exercises:

jazz scale exercise

This is more or less just playing the scale straight, but in a way that doesn’t sound so mechanical. You can also try varying the rhythm when using it while improvising.

 

jazz scale exercise

This is basically playing the scale in ‘thirds’ going in a downward direction and in an up-down motion. Check out how playing the scale in ‘thirds’ actually ends up using intervals other than just thirds.

 

jazz scale exercise

This example is just playing the pentatonic scale in straight ‘diatonic triads’. It ends up having wide intervals and sounding sort of angular.

 

Even the most basic pentatonic scale patterns end up sounding interesting. This is one reason that it’s so easy to convincingly apply pentatonic scales to solos.

 

Application to Improvisation

 

The pentatonic scale can be easily applied to many styles of music. It’s one of the most versatile scales. There are a variety of possible applications for improvisation, from very simple to complex.

 

The most simple way, as I referenced above, is applying the scale to songs that have a simple progression and that stay in the same key. These can be pop songs, funk songs, rock songs, etc. You can use the major or minor pentatonic scale the same way you use the blues scale, blanketing one scale over the entire progression. This is the most simple application, but it doesn’t mean it can’t be done well. Listen to Bobby Keys’s solo on “Can’t You Hear Me Knocking” by the Rolling Stones. It’s interesting and captivating to listen to, but consists almost entirely of notes in one pentatonic scale. Try listening to some of your favorite songs and figuring out which major pentatonic scale you can blanket over them. It’s fun to solo over your favorite songs. And it’s good practice for when your on a pop gig and the band starts playing a song you don’t know.

 

You can use the pentatonic scale in a similar way over some modal jazz tunes. Let’s think about the tune “Impressions” as an example. The tune is AABA form with the ‘A’ sections being in D minor and the ‘B’ section being in Eb minor. The most basic way to use the pentatonic scale over this tune is to play the D minor pentatonic over the ‘A’ sections and the Eb minor pentatonic over the ‘B’ section. There are more complex ways, which you can experiment with. You can use other pentatonics to achieve a different sound. The D-6 pentatonic still sounds very ‘in’ but offers a different color. The F minor pentatonic and Bb minor pentatonic scales sound ‘out’ over a D-7 chord, but they sound good if used convincingly, at least to my ears.

pentatonic scale

 

Although a little more difficult, pentatonics can also be applied to more standard jazz tunes. Over a major7 chord, you can play a major pentatonic scale based on the fifth of the chord (G A B D E over a Cmaj7 chord). Over a minor(major7) chord, you can play a major(b6) pentatonic scale based on the fifth of the chord (E F# G# B C over an Amin(maj7) chord).

 

There’s a cool way to use the pentatonic scale in an ascending half-step progression over a ii-V-I progression. You start by using a major pentatonic scale based on the seventh of the ii7 chord. Then, go up a half-step for the V7 chord, and then up another half step for the I chord. This is an easy way to achieve both sequence as well as tension and release. It’s easy to play a sequence because you’re using the same type of scale. You could repeat 12356532 over each chord, as I illustrate in the example, or you could (and should) use a more complex sequence. The tension and release is built in. The first scale over the ii7 chord sounds very consonant, the second scale over the V7 chord sounds very dissonant, and the third scale over the I chord sounds consonant again.

pentatonic scale

 

When practicing, you should experiment with using the pentatonic scale in all of these different applications. The scale has the potential to be extremely versatile, if you know how to use it in multiple contexts.

 

Conclusion

 

There have been a few times in my life when the pentatonic scale has made certain impressions on me. I remember sophomore year in college, I was all about learning ii-V-I licks. I could play any jazz standard convincingly using bebop language. But when it came to soloing over modal jazz or soloing over funk or pop songs, I was at a complete loss. There was another saxophone player I knew who could just “shred” over any funk or pop tune. I didn’t understand what he was doing at the time, but remember being very impressed. Looking back, he was probably just playing pentatonic scales.

 

saxophone guitarWhen I started playing music professionally, I was performing a lot of society dance book music; old jazz standards arranged for a medium-large ensemble. This stuff was right in my comfort zone. I felt totally comfortable soloing over that music. I was playing alongside another saxophone player (who was about 5 years older than me), who made a comment that stuck with me. He said something along the lines of, “Man, I don’t have any bebop language anymore. All I can play are pentatonic scales.” What he was getting at was that, playing professionally, he got much better at pentatonic scales at the expense of his jazz language.

 

The moral of the story is: the pentatonic is a great, useful, versatile scale. It’s easy to learn and pretty easy to make sound great. It can be easily applied to a variety of musical genres. It’s a scale you’ll use very often if you play music outside of the jazz idiom. But, if you wanna keep your jazz chops together, you shouldn’t neglect your other scales!

 

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