In music, a fourth is an interval spanning four staff positions in the musical notation common in Western culture.
Specific fourth intervals include:
- Perfect fourth, the fourth spanning five semitones
- Diminished fourth, a perfect fourth narrowed by a chromatic semitone, thus spanning four semitones
- Augmented fourth or tritone, an interval of three adjacent whole tones (six semitones)
In addition, fourth in music may refer to:
- Quartal harmony, harmonic structures built from the perfect fourth, the augmented fourth and the diminished fourth
- Subdominant, the fourth tonal degree of the diatonic scale
This set index article includes a list of related items that share the same name (or similar names).
If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.
If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.