augmented fourth
nounDefinitions
A type of tritone in musical composition. It spans four diatonic scale degrees like a…
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.
- An augmented fourth on C: 1
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sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA