Mixolydian — the bluesy major

Quick facts

• Formula: 1 2 3 4 5 6 ♭7
• Compared to major: same, but the 7 is lowered a half-step.
• Mood: bright but earthy, bluesy, “American”, rock-and-roll, funky.
• Where you hear it: “Sweet Home Alabama”, “Sweet Child O’ Mine” verse, “Royals” (Lorde) — basically half of rock and country music.

Why the ♭7 matters

In a major scale, the 7 is a “leading tone” that wants to resolve up to the 1 — that’s the engine of classical harmony. Mixolydian removes that pull. The ♭7 sits a whole step below the 1 and feels relaxed, not urgent. The result: a major-sounding scale without the formal resolution — perfect for groove music.

G major: G A B C D E F♯ G Mixolydian: G A B C D E F

On the fretboard

The Mixolydian vamp

The classic two-chord Mixolydian backing: I — ♭VII (both major).

In G Mixolydian: G → F. Loop it. Solo. That’s the sound of “Sympathy for the Devil,” “Tequila,” half of Tom Petty, and a thousand other tunes.

Mixolydian over dominant 7 chords

A dominant 7 chord (e.g. G7 = G B D F) contains exactly the notes 1, 3, 5, ♭7 of Mixolydian. So Mixolydian is the default scale for soloing over any dominant 7 chord.

This is the second most important “scale-over-chord” relationship in modern music (the first being minor pentatonic over a minor chord).

Try this

Loop a G7 chord (no other chords). Solo using only G Mixolydian. Hit the F (♭7) often — that’s where the bluesy flavor lives. Then try the G major scale (G A B C D E F♯) over the same chord — the F♯ will sound “wrong” because the chord contains F natural. This single comparison teaches you the relationship between scales and chords more clearly than any textbook.