Chapter 11: Expand Your Vocabulary with the Blues Scale, Hexatonic, and Other Variations

Ready to expand your pentatonic vocabulary with sounds that are colorful, melodic, and full of character? In this chapter, you explore some of the most expressive variations of the pentatonic scale, starting with the classic blues scale and then venturing into hexatonic territory. These simple tweaks open the door to more vocal phrasing, emotional nuance, and melodic edge—the kind of playing that jumps off the fretboard and grabs the listener.

Whether you’re channeling the lyrical phrasing of Eric Clapton or the heavier edge of Black Sabbath, this chapter helps you move beyond stock scale shapes and start crafting lines that truly leave a mark.

From the book Lead Guitar Unlocked: Master Expressive Soloing With the Pentatonic Scale.

The Minor Blues Scale

You begin with a popular variation known as the blues scale. The minor blues scale is simply the minor pentatonic with one added note—the flat fifth (♭5), also called the blue note. This added tone gives the scale its name, even though the regular minor pentatonic is already widely used in blues. The ♭5 adds tension, a touch of chromaticism, and a distinctly vocal quality to your phrasing.

Scale formula: 1–♭3–4–♭5–5–♭7

You hear this sound in countless songs, including:

• “Baby Please Don’t Go” – Them
• “Rock and Roll, Hoochie Koo” – Rick Derringer
• “Sunshine of Your Love” – Cream
• “Heartbreaker” – Led Zeppelin
• “Spooky” (guitar solo) – Atlanta Rhythm Section

Refer to Figure 11-1 to see the blues scale in Pattern 1 across a few keys. You don’t need to relearn all five pentatonic positions—just understand how to insert the blue note where it fits. For example:

• “Heartbreaker” uses the A minor blues scale in open-position Pattern 4.
• At 2:58 of the second solo in “Spooky,” you hear Pattern 5 of the F minor blues scale used in a repeating, rhythmically displaced motif.

Most players become familiar with this scale by learning songs rather than memorizing entirely new shapes.

In Figure 11-2, you play sample runs using the F minor blues scale. The first four bars are straightforward, using only eighth notes. The next two bars shift into a higher gear with sixteenth notes, but added legato helps smooth things out by reducing the number of pickstrokes. In the final two bars, you ascend the scale using strict alternate picking. Listen to Audio Track 11-1 for my demonstration. Try pushing the tempo on these examples to explore how the blues scale can work in fast, shred-style playing.

The Major Blues Scale

The blues scale isn’t just for minor keys. You can use the same pattern for the major blues scale by shifting your tonic reference from the relative minor to the relative major. For example, the E minor blues scale becomes the G major blues scale. That small tweak changes the feel entirely. Refer to Figure 11-3 for diagrams. To hear the tonality and structure of the scale correctly, start on the tonic and play from 1 to 1 in the diagrams. In this context, the added chromatic note becomes a ♯2 or ♭3, giving you a new formula:

Scale formula: 1–2–♭3–3–5–6

Figure 11-4 features a few sample runs in the major pentatonic blues scale with a bluegrass flavor. Listen to my demonstration in Audio Track 11-2.

Like the minor blues scale, the major blues scale doesn’t require memorizing an entirely new set of patterns. Instead, just understand that it adds a minor third to the major pentatonic—a tweak you can apply within any pattern. Most players become comfortable with this sound by learning songs that feature it, such as:

• “Take It Easy” (Intro) – The Eagles
• “Sir Duke” (Bridge) – Stevie Wonder
• “Lenny” (Outro) – Stevie Ray Vaughan
• “Country Boy” (Intro) – Ricky Skaggs/Albert Lee
• “Ramblin’ Man” (Interlude) – Allman Brothers Band

When it comes to applying blues scales, country guitarists tend to favor the major flavor, while blues and rock players often lean toward the minor. But there’s no hard rule—use whatever sounds right for the song. Blues and rock guitarists also commonly blend the major and minor blues scales, just as they do with the regular pentatonics (see Chapter 9), especially when a ♭7 sound is present. A great example is the first solo in “Hard to Handle” by The Black Crowes.

Chromatic Passing Notes

In addition to the flat fifth, players often insert chromatic passing tones—half-step movements that add momentum and tension between scale notes. These “in-between” notes aren’t technically in the key but sound natural when phrased musically.

Great examples include:

• “Roadhouse Blues” – The Doors
• “Iron Man” – Black Sabbath
• “Pride and Joy” – Stevie Ray Vaughan
• “Oh Well” – Fleetwood Mac
• “The Lemon Song” – Led Zeppelin
• “Black Dog” – Led Zeppelin
• “The Thrill Is Gone” – B.B. King
• “Couple Days Off” – Huey Lewis & The News

See Figure 11-5 for pattern examples, and keep an eye out for places where chromatic notes can be inserted between any two pentatonic notes that are a whole step apart, including in the major pentatonic.

For a great example of chromatic movement within the major pentatonic scale, listen to the first solo in “Hard to Handle” by The Black Crowes, where it shifts to the 4th position and the B major blues scale.

Reminder: You don’t need to reprogram everything you know. Stick with the core pentatonic patterns, and think of these added half steps as seasoning—sprinkle them in where they suit the music.

Beyond Blues – Chromaticism in Rock and Metal

Sometimes players add multiple tones outside the pentatonic framework to create a darker, more chromatic sound that doesn’t fit neatly into any one scale. A great example is “Seek and Destroy” by Metallica. It’s rooted in A minor pentatonic, but adds a ♭5, ♭2, and ♭6 to create a heavy, almost Phrygian modal feel. In these cases, don’t overanalyze the theory—just recognize that these half steps add mood.

Major and Minor Hexatonic Scales

Another effective way to add color to your phrasing is by expanding the pentatonic scale with one additional note—creating what’s called a hexatonic scale (from “hexa,” meaning six notes).

While not officially named in music theory, players and educators often refer to these as:

• Major Hexatonic – Major pentatonic + 4th (or major scale minus the 7th)
• Minor Hexatonic – Minor pentatonic + 2nd (or minor scale minus the ♭6)

Both variations add melodic interest by incorporating half steps from the complete major and minor scales without drastically changing the feel of the pentatonic. Hexatonics sound familiar, natural, and musical, making them ideal tools for crafting expressive, memorable licks.

It’s also worth noting that the major hexatonic scale fits comfortably within both of the most common major modes, Ionian and Mixolydian, since it omits the 7th, the note that distinguishes the two. Like the plain major pentatonic, this makes the major hexatonic a safe choice for most major keys, with little risk of clashing with the harmony. The same goes for the minor hexatonic scale: its notes are drawn from the two most popular minor modes, Dorian and Aeolian, making it equally reliable in most minor key contexts.

Major Hexatonic (Add 4th)

The major hexatonic scale adds a 4th to the major pentatonic:

Scale formula: 1–2–3–4–5–6

The added 4th introduces more stepwise motion while maintaining the sweetness of the major pentatonic. This sound is strongly associated with Dickey Betts, who uses it in the lead guitar parts of “Blue Sky,” “Ramblin’ Man,” and “Jessica.” Fittingly, these solos are played over IV chords, connecting to the chord-tone concepts you explore in Chapter 10.

Refer to Figure 11-6 to see the C major hexatonic scale in Pattern 1 and Figure 11-7 for a sample phrase. Listen to my sample phrase in Audio Track 11-3. Move this pattern to play in other keys. Like other pentatonic variations, it’s not necessary to learn entirely new patterns; just keep in mind that 4ths are often added in major keys.

Minor Hexatonic (Add 2nd)

The minor hexatonic scale adds a 2nd to the minor pentatonic:

Scale formula: 1–2–♭3–4–5–♭7

This scale is commonly heard in minor blues and classic rock solos. The 2nd adds a sense of lift and flow to licks, making the minor pentatonic more melodic.

Famous examples include:

• “Layla” – Derek and the Dominos (lead guitar intro in D minor)
• “Another Brick in the Wall, Pt. 2” – Pink Floyd (guitar solo in D minor)
• “Refugee” – Tom Petty and the Heartbreakers (lead guitar intro in F♯ minor)
• “Brothers in Arms” – Dire Straits (lead guitar intro at 0:36 in G♯ minor)
• “Cliffs of Dover” – Eric Johnson (lead guitar intro in E minor)

See Figure 11-8 for the A minor hexatonic scale in Pattern 1.

In Figure 11-9, you see a shred-style phrasing example inspired by Eric Johnson and Joe Bonamassa. In Audio Track 11-4, you hear me play through the phrase in free time. Try it yourself at a tempo that feels comfortable to you. As an interesting sidenote, notice how adding the 2nd at the 14th fret of string 1 affects alternate picking—it keeps the string changes on downstrokes when you reverse direction and descend the scale. Fast, articulate playing often relies on this kind of picking efficiency.

Wrap Up

You’ve expanded your pentatonic vocabulary with powerful variations that add expressiveness, color, and musical depth. Whether you’re spicing things up with the blues scale, slipping in chromatic tones, or stretching your melodies with hexatonics, these ideas will help your solos stand out. You don’t need to memorize new patterns—just visualize where the extra notes fit into what you already know.

Access the Free Online Resources

Head to Lead Guitar Unlocked – Free Audio & Video Resources on Teachable to listen to this chapter’s audio tracks and jam along with the backing tracks.

Up Next: Two-Note Firepower – Double Stops, Unison Bends, and More

In Chapter 12, you give your playing both an R&B flavor and a classic rock edge by using expressive two-note phrases drawn from the pentatonic scale—think double stops, unison bends, and Chuck Berry–style licks that make your solos jump off the fretboard.