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Fifteenth (interval)

In music, a fifteenth or double octave, abbreviated 15ma, is the interval between one musical note and another with one-quarter the wavelength or quadruple the frequency. It has also been referred to as the bisdiapason. The fourth harmonic, it is two octaves. For instance, the interval between C4 and C6 (in scientific pitch notation) is a fifteenth.

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Overview

MusicIntervalMusical noteWavelengthFrequency
14 related topics

Organ stop

Diapason
1 related topics

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24-Tone equal temperament
2400
Abbreviation
P15
Equal temperament
2400
Interval class
0
Just interval
4:1
Just intonation
2400

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Organ stop

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Fifteenth (interval)

Nodes18
Edges17
Triples7
Avg. degree1.89
Density0.111111
Components1

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Fifteenth (interval)

Top relations

24-Tone equal temperament · 1
Fifteenth (interval) → 2400
Abbreviation · 1
Fifteenth (interval) → P15
Equal temperament · 1
Fifteenth (interval) → 2400
Interval class · 1
Fifteenth (interval) → 0
Just interval · 1
Fifteenth (interval) → 4:1
Just intonation · 1
Fifteenth (interval) → 2400
Semitones · 1
Fifteenth (interval) → 24

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Important terminology

fifteenth octave octaves two notes note frequency 15ma notation interval one apart music also referred pitch likely less italian stops

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Fifteenth (interval)24-Tone equal temperament24001.00infobox
Fifteenth (interval)AbbreviationP151.00infobox
Fifteenth (interval)Equal temperament24001.00infobox
Fifteenth (interval)Interval class01.00infobox
Fifteenth (interval)Just interval4:11.00infobox
Fifteenth (interval)Just intonation24001.00infobox
Fifteenth (interval)Semitones241.00infobox

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    Min side: 3
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