augmented sixth

American  

noun

Music.

1. an interval greater than a major sixth by a chromatic half step.

2. any of various chords having this as the characteristic interval.

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Example Sentences

Though the augmented sixth was then and remained unusual, Johann Christoph's is not the earliest use of it.

From Project Gutenberg

The student who can tell a diminished seventh, or an augmented sixth at a glance, but who could not identify the same chords when he saw them through his ears instead of his eyes is severely handicapped.

From Project Gutenberg

C—A. An augmented sixth has five major seconds.

From Project Gutenberg

The modulation into the key of the death-motive, A flat, is effected through the chord of the augmented sixth.

From Project Gutenberg

Not only was he ugly, dirty, ill-dressed, bumptious, and in every way objectionable, but he was deformed and waddled when he walked so that he had won a nick-name which I can only reproduce by calling it “Here’s my back, and there’s my back,” because the lower parts of his back emphasised themselves demonstratively as though about to fly off in different directions like the two extreme notes in the chord of the augmented sixth, with every step he took. 

From Project Gutenberg