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8 semitones · pure 8:5

The minor sixth

Eight semitones, a wide leap with a yearning sound. Turned upside down, it's a major third: C up to A♭ is a minor sixth, A♭ up to C a major third.

A song with a minor sixth

Going up: Scott Joplin's The Entertainer, from 1902, leaps a minor sixth up to its first high note. For a minor sixth going down there's no famous public-domain tune we'd vouch for.

Hearing it as a third turned over

If the leap is hard to pitch, sing the octave and come down a major third: C up to C, down to A♭, is the same as C up a minor sixth. Pure, it's 8:5, about 14 cents (a cent is a hundredth of a semitone) wider than a piano's, the mirror of the pure major third.

More intervals

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Stackapella teaches you to sing harmony one part at a time, right in your browser.

Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up. Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up. Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up. Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up.
  • A guide sings your partHear your line over the others, slow it down, then take your turn.
  • Your notes light upEach note shows where you landed, and a hint when to go up or down.
  • Record every part yourselfStack your takes in time until you're the whole choir.

Questions

What is a minor sixth?

An interval of eight semitones: C to A♭, or E to C.

How do I tell a minor sixth from a major sixth?

The major sixth is one semitone wider and sounds bright, like My Bonnie Lies over the Ocean; the minor sixth sounds darker and more yearning.

Is a minor sixth the same as an augmented fifth?

On a piano they sound the same, but they're spelled differently: C to A♭ is a minor sixth, C to G♯ an augmented fifth, the top of an augmented chord.

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