augmented fourth

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augmented fourth

noun augmented fourths

A type of tritone in musical composition. It spans four diatonic scale degrees like a perfect fourth but with an extension of a chromatic semitone. The number of diatonic degrees it spans is what distinguishes it from a diminished fifth. e.g. C - F is a perfect fourth, C - F# is an augmented fourth, and C - F♭ is a diminished fourth.

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Français	quarte augmentée

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"augmented fourth." Wiktionary, via Micwyn, micwyn.com/word/augmented%20fourth. Accessed 6 Nov. 2026.

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augmented fourth. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/augmented%20fourth

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"augmented fourth." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/augmented%20fourth.

BibTeX

@misc{augmented_fourth_2026,
  title = {augmented fourth},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/augmented%20fourth},
  urldate = {2026-11-06}
}