Mixolydian Mode

Major Scale Lydian Mode Aeolian Mode Blues Scale Scale

How to remember Mixolydian: major, with the seventh lowered.

C major: C D E F G A B Mixolydian (C): C D E F G A B♭

The lowered seventh happens to be the single most important force in tonal music — the leading tone. In major it sits a semitone below the tonic and creates a strong compulsion to go home. Lower it and the compulsion is gone: the major brightness stays, the urge to close does not.

Structure

Reference	Change	Result
major scale	lower the 7th	Mixolydian
major scale	start on the 5th degree	also Mixolydian

Degree	1	2	3	4	5	6	7
vs. major	=	=	=	=	=	=	lowered

The characteristic note is the seventh (a minor seventh). Its difference from Lydian was covered above; from Aeolian the deciding question is the third: major third means Mixolydian, minor third means Aeolian.

Why folk and rock use it so much

Because it removes the leading tone's compulsion without losing a tonal centre. A melody can rest on the seventh without sounding unresolved, or lean on it to return to the tonic without sounding classical. The minor seventh of the blues scale comes from the same place.

Diagram: lowering the leading tone

Listen: the lowered seventh

Hear Mixolydian, then major. The seventh differs in height: one can rest there, the other insists on coming home.

Common misconceptions

"A lowered seventh is the blues note." The blues scale also lowers the third and fifth — it is a different scale (see blues scale).
"Mixolydian has no tonal centre." It has a clear tonic; it simply lacks the leading tone's compulsion, so closure is freer.
"It is only a notational difference." The heard difference is real: major's seventh is a minor second from the tonic (tense), Mixolydian's is a whole tone (relaxed).
"Only folk music uses it." It is standard vocabulary in rock, funk and jazz, and one of the most common modes for soloing.

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Listen in the library

Prelude in E mixolydianC15:36The title names mixolydian outright — good for hearing major colour with a lowered seventhDetails12 Variations on Ah vous dirai-je maman K.265/300eC17:31The major-key version of a theme, useful as a control — lower its seventh and you have MixolydianDetailsScales, Arpeggios, and CadencesC13:22Scale exercises can be used to play the mode itself and hear the structureDetails

All tracks from midicn-lib — inline badge is the license tier (C1 commercial / C2 non-commercial / C3 study only).

Sources

混合利底亚调式 = 大调音阶降第 7 级；亦等于大调音阶自第 5 级起的排列，属乐理通则
混合利底亚在民间音乐、摇滚与蓝调中广泛使用，为通行表述

Used for fact-checking only; all prose is original.

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