Ionian (Major)

The major scale — the most familiar sound in Western music

Ionian is the major scale — the most familiar and foundational major major mode, and the most common scale in Western music. Bright, resolved, and stable: the default sound of nursery rhymes and most pop and rock. Its major pentatonic subset is the innate human melodic scale.

The major scale prevails over non-diatonic scales because of its internal consonance and its versatile containment of triads, tetrads, and pentatonics. It prevails over the other major modes because its single dominant 7th chord, on the 5th degree, resolves strongly to the root — in the other modes that resolution does not land on the root.

Common in pop, rock, classical, country, folk, gospel, Broadway, and film scores. The overwhelming majority of popular music is in Ionian or its relative Aeolian.

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The instrumentTap a note to hear it.
CCD♭2DD dorianE♭3EE phrygian4FF lydianF♯5GG mixolydianA♭6AA aeolianB♭7BB locrian
C0D2E4F5G7A9B11
Circle of fifthsInside, the twelve notes by semitone — the wheel every set on this site is drawn on. Outside, the same twelve by fifths. 7 fifths from F — F C G D A E B. From C, ionian, the major scale: C D E F G A B. No sharps or flats; its neighbors G and F major share 6 of 7 notes.

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