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Fifteenth (interval): Art & Science

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.

Language: English [EN]
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Fifteenth (interval) topic overview

The analysis highlights Art and Science as prominent areas in the source structure around Fifteenth (interval).

Related topics
15
Source areas
2
Connected nodes
17
Extracted relationships
7
Concept neighborhoods
17
Bridge connections
17

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Overview · 14 topics
Organ stop · 1 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

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

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Organ stop

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Fifteenth (interval) connects Entity context

The extracted context around Fifteenth (interval) shows recurring relationship patterns in the source. For example, Fifteenth (interval) → 2400 Another extracted example is Fifteenth (interval) → P15. Use these groups to spot repeated connection types before inspecting the individual relationships.

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

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

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

Fifteenth (interval) relationships Subject–Predicate–Object triples

TTTA extracted 7 structured relationships around Fifteenth (interval). Examples in this analysis include Fifteenth (interval) → 24-Tone equal temperament → 2400 and Fifteenth (interval) → Abbreviation → P15. The table shows each extracted connection, where it came from and its confidence.

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

Related concept clusters Concept neighborhoods

The concept neighborhoods around Fifteenth (interval) bring nearby vocabulary together. In this analysis, examples include Octave, Two and Another. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Fifteenth (interval)
    • Octave
    • Two
    • Another
    • Notes
    • 15ma
    • Apart
    • Interval
    • Notation
    • One
    • Octaves
    • Note
    • Organ
  • fifteenth (interval)
    • Notation
    • Octave
    • Two
    • Another
    • Musical
    • One-quarter
    • Wavelength
    • Notes
    • 15ma
    • Apart
    • Interval
    • One
  • music notation
    • Like
    • Note
    • Abbreviated
    • Another
    • Musical
    • One-quarter
    • Wavelength
    • 15mb
    • Italian
    • Notated
    • Organ
    • Pitch
  • interval
    • Notation
    • Another
    • Musical
    • One-quarter
    • Wavelength
    • 15mb
    • Italian
    • Like
    • Notated
    • Organ
    • Pitch
    • Octave
  • octaves
    • Two
    • Italian
    • Organ
    • Notes
    • Ear
    • Hear
    • Super
    • 15mb
    • Less
    • Like
    • Likely
    • Notated
  • scientific pitch notation
    • Like
    • Less
    • Likely
    • 15mb
    • Frequency
    • Interval
    • Italian
    • Notated
    • Notation
    • Organ
    • Pitch
    • Octave
  • music
    • Note
    • Abbreviated
    • Another
    • Musical
    • One-quarter
    • Wavelength
    • Like
    • Word
    • Octave
    • 15ma
    • Also
    • Apart
  • musical note
    • One-quarter
    • Wavelength
    • One
    • Octave
    • Hz
    • Note
    • Notes
    • Super
    • 15mb
    • Like
    • Organ
    • Also

Connections between topic areas Semantic bridges

For Fifteenth (interval), one of the stronger structural bridges in this analysis connects Fifteenth (interval) with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Fifteenth (interval) — Overview · splits 3 ⟂ 15

Map overview Semantic statistics

Fifteenth (interval)

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

Source & methodology

TTTA analyzes the structure around Fifteenth (interval) to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Art & Science, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Fifteenth (interval) · EN edition · Analysis: TopicsToTalkAbout

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