D Major Blues Scale: Notes and How to Play It

The D major blues scale is one of the most useful six-note tools a guitarist can learn. It takes the bright, friendly sound of the major pentatonic and adds one 'bluesy' note that gives your playing that sweet, slightly bittersweet twang you hear in country licks, Southern rock solos and jump blues. If you want your D licks to sound happy but still have some grit, this is the scale to reach for.

The Notes of D Major Blues

Here are the six notes of the D major blues scale: D, E, F, F#, A, B.

Each note has a number that describes its distance from D, the root (the 'home' note the scale is built on):

• D: 1, the root
• E: 2, the major 2nd
• F: b3, the minor 3rd
• F#: 3, the major 3rd
• A: 5, the perfect 5th
• B: 6, the major 6th

If you already know the D major pentatonic scale (D, E, F#, A, B), you're nearly there. The major blues scale is simply that pentatonic with one extra note squeezed in: F.

A quick word on spelling

You might notice the scale has both F and F#, and wonder if that's a typo. It isn't. The minor 3rd above D is F, and the major 3rd above D is F#. Because both kinds of 3rd live in this scale, the letter F shows up twice, once plain and once sharp. That's completely normal for the blues scale, and it's actually the whole point: the tension between those two neighbouring notes is where the magic happens.

How the Step Pattern Builds the Scale

Scales are built from steps. A half step (H) is the distance of one fret on the guitar. A whole step (W) is two frets. The major blues scale also uses a bigger jump of a whole step plus a half step (W+H), which is three frets.

The pattern is: W - H - H - W+H - W - W+H. Starting from D, it works like this:

1. D up a whole step (2 frets) to E
2. E up a half step (1 fret) to F
3. F up a half step (1 fret) to F#
4. F# up a whole step plus a half step (3 frets) to A
5. A up a whole step (2 frets) to B
6. B up a whole step plus a half step (3 frets) back to D

Try it on a single string. Put your finger on the A string at fret 5 (that's D) and move up: frets 5, 7, 8, 9, 12, 14, then 17 for the D an octave higher. Playing a scale along one string like this really helps you hear and see the shape of the pattern.

What Gives It That Sound

The star of this scale is F, the flat 3rd, often called the 'blue note'. On its own, F against a D major chord sounds a little sour, like a note that's leaning on the wrong foot. But players rarely leave it hanging. They slide or bend it up one fret into F#, the major 3rd, which sounds bright and resolved.

That little move from F to F# is the sound of happy blues. It's the 'cry and then smile' you hear in a chicken-picking country lick or a rolling Southern rock solo. When you practise, listen for that moment of tension on F and the relief when you land on F#. Try a slide (F to F# with one finger), a hammer-on, and a small bend, and notice how each one gives the move a different personality.

One more thing worth knowing: the B blues scale uses exactly the same notes. It's the relative scale. Same notes, different home base. Centre your playing on D and it sounds sunny; centre it on B and it sounds darker and moodier.

Chords and a Progression to Jam Over

The most natural backing for D major blues is a classic blues in D built on three chords: D7, G7 and A7. These are the I, IV and V chords in D, the backbone of countless blues and rock tunes.

Here's the standard 12-bar blues, one chord per bar:

• Bars 1 to 4: D7, D7, D7, D7
• Bars 5 to 8: G7, G7, D7, D7
• Bars 9 to 12: A7, G7, D7, A7

Record yourself strumming this slowly, or have a friend play it, and improvise over the top. The scale sounds strongest over the D7 bars, where that F-to-F# move really sings. Make a point of ending your phrases on D or F# and you'll sound like you know exactly where you're going.

Finding D on the Neck

On a standard-tuned six-string guitar, your D root notes on the two lowest strings are:

• Low E (6th) string: frets 10 and 22
• A (5th) string: frets 5 and 17

A comfortable place to start is around the 7th to 10th frets. Here's one box shape that covers all six notes, string by string from low to high:

• Low E string: frets 7 (B), 10 (D)
• A string: frets 7 (E), 8 (F), 9 (F#)
• D string: frets 7 (A), 9 (B)
• G string: frets 7 (D), 9 (E), 10 (F)
• B string: frets 7 (F#), 10 (A)
• High E string: frets 7 (B), 10 (D)

The D notes in this box sit on the low E string at fret 10, the G string at fret 7 and the high E string at fret 10. Keep your eye on those, because they're your landing spots.

Your Practice Plan

Spend five minutes today on just one idea: on the A string, play fret 8 (F) and slide up to fret 9 (F#), then hit fret 5 (D). Repeat it until it feels like a phrase rather than an exercise. Then drop that lick into the 12-bar progression above, a few times per chorus, and build around it. Once that little slide feels like yours, the rest of the scale will follow quickly. Have fun with it.

For the bigger picture, read The Major Blues Scale.