Fourth

Music An interval reached by ascending three steps from the root in a diatonic scale?.

An interval of four notes. (Stainer, John; Barrett, W.A.; A Dictionary of Musical Terms; Novello, Ewer and Co., London, pre-1900)

Augmented Fourth Fourth increased by a sharp.
Diminished Fourth Fourth reduced by a semitone/flat.
Perfect Fourth

See Also

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7.13 - Fourth
Fourth Dimension
Interval
Note

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