E Mixolydian Mode: Writing Melodies Around That Flat D

Play an E major scale, but when you reach the seventh note, play D instead of D#. That one change makes all the difference. The scale still sounds bright and major, but the urgent climb back to E is gone. In its place is something looser and more relaxed, with a bit of swagger. That D is the heart of the E Mixolydian mode, and once you learn to hear it, you'll start writing melodies that couldn't belong to any other scale.

Seven Notes, Seven Letters

The notes of E Mixolydian are E, F#, G#, A, B, C#, D.

Notice that every letter from A to G appears exactly once. That's the rule for spelling any seven-note scale: use each letter once, then add sharps (#) or flats (b) to land on the right pitches. A sharp raises a note by a half step. A half step is the smallest step in Western music, like moving from one piano key to the very next one, black or white. So F# is the black key just above F.

Why F# rather than Gb? Because we already need a G of some kind later (G#), and calling it Gb would mean two G's and no F. The same logic gives us G# instead of Ab, and C# instead of Db. One letter each keeps the scale tidy and easy to read.

You may also come across the name Fb Mixolydian. It sounds exactly the same, but it's spelled with nine flats, including double flats. Nobody expects you to read music like that. It's a curiosity of the naming system, and you can happily stick with E.

Where the Steps Fall

A whole step is two half steps, like skipping one piano key. Mixolydian follows this pattern: W - W - H - W - W - H - W.

Starting on E: a whole step to F#, a whole step to G#, a half step to A, a whole step to B, a whole step to C#, a half step to D, and a final whole step back up to E.

That last whole step is the important part. In E major, the seventh note is D#, only a half step below E, and it pulls hard toward home. In Mixolydian the gap is a full whole step, so the D sits comfortably where it is. It doesn't need to resolve. That's why the mode feels laid-back instead of tense.

In formula terms, the scale is 1, 2, 3, 4, 5, 6, b7. The b7 (flat seventh) is the only difference from a major scale.

A Borrowed Key Signature

E Mixolydian uses exactly the same notes as A major: A, B, C#, D, E, F#, G#. So it shares A major's key signature of three sharps, F#, C# and G#. Those same three sharps also belong to F# minor, A major's relative minor.

The notes are identical, so what makes it Mixolydian? The center of gravity. When E sounds like home and your phrases come to rest there, you're in E Mixolydian. Put A underneath everything and the same notes turn into A major. Your melody and your bass note decide which one the listener hears.

Home Notes and Restless Notes

A melody writer thinks of a scale as a set of places to stand and places to pass through. In E Mixolydian:

• E, G# and B are the resting places. Together they make the E major chord, and landing on any of them feels settled. E is the most final of the three.
• A leans down to G#, a half step below. Hold an A over an E chord and you'll feel it wanting to drop.
• F# and C# are gentle passing notes. They move easily to their neighbors without much drama.
• D is the personality. It can step down to C#, drop to B, or rise a whole step to E. That last move, D up to E, is the signature Mixolydian cadence. A cadence is the musical equivalent of a full stop, and this one sounds confident and unhurried rather than urgent.

To make your tune sound unmistakably Mixolydian, put the D somewhere the ear will notice it: on a strong beat, held for a moment, or as the last note before you land on E. If you hide it in a fast run, the listener may simply hear E major.

Chords Under the Melody

Build a three-note chord (a triad) on each scale note and you get:

• I: E (E-G#-B), or E7
• ii: F#m (F#-A-C#), or F#m7
• iii°: G#dim (G#-B-D), or G#m7b5
• IV: A (A-C#-E), or Amaj7
• v: Bm (B-D-F#), or Bm7
• vi: C#m (C#-E-G#), or C#m7
• bVII: D (D-F#-A), or Dmaj7

The chords that carry the Mixolydian sound are the ones containing D: D, Bm and E7. Notice that the five chord is Bm, not B major. That minor five is a big part of why the mode never feels tense.

Try this progression: E - D - A - E. That's I - bVII - IV - I, a move you'll hear all over rock, blues-rock and folk music. On piano, play the chords with your left hand and hum a melody over them. When the D chord arrives, sing a D or an F# and feel how the color changes.

For Guitarists

The root E sits on the low E string at the open string, fret 12 and fret 24, and on the A string at frets 7 and 19. A good starting spot is the 7th fret of the A string. From there, play the scale up and down, then hammer the D-to-E move until it becomes a habit in your fingers. Strum the E - D - A - E progression with open chords and improvise on top.

Write a Four-Bar Tune

Here's a melody outline to sing or play: bar one, E - G# - B; bar two, C# - D held long; bar three, C# - B - A - G#; bar four, D - E. Play it over E, D, A, E, one chord per bar. Then rewrite bar two with your own rhythm, keeping that held D, and listen to how the whole tune hangs on that one note.

For the bigger picture, read The Mixolydian Mode.