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In graph Frontier

Fundamental frequency

The lowest frequency of a periodic waveform, heard as its pitch.

Also known as: f0 · Grundton

At a glance

Type
waves
Mental models 1
Role in the graph
Cross-disciplinary bridge
reaches 3 discipline lenses

Key signals

Cross-disciplinary reach
Disciplines
3
  • Acoustics
  • Music Theory
  • Physics
Evidence & development

Dependencies

What this concept builds on and what it makes possible — derived from the atlas’s dependency, causal and structural relations, not from every related edge.

Enables · leads to

Fundamental frequencycausesPitchEstablished

Open Pitch →

fundamental frequency determines pitch.

Mechanism: Perceived pitch tracks the fundamental frequency of a tone.

Sources:

System context

Fundamental frequencyis aFrequencyEstablished

Open Frequency →

fundamental frequency is a kind of frequency.

Mechanism: The fundamental is the first and lowest frequency of the harmonic series.

Sources:
Fundamental frequencyis part ofHarmonic seriesEstablished

Open Harmonic series →

fundamental frequency is part of harmonic series.

Mechanism: It is the first harmonic on which the rest of the series is built.

Sources:

Structural role & consequence

Interpreted from the current atlas graph — what the connections mean, not just how many there are.

  • Directly enables 1 concept; following enables/causes relations, 1 concept is downstream across 3 disciplines.

    structural · Follows only enables/causes dependency edges — not general relatedness.

  • Currently dark in the atlas: no key date stored · 3 of 3 of its relations lack claim-level evidence.

    atlas representation · Describes the current Thinking OS representation, not the state of the world.

  • Structural neighbourhood: 3 → 21 → 80 concepts reachable within 3 hops.

    structural · Structural reach — being reachable is not the same as being understood.

  • All 3 of its relationships stay within its own discipline — a field-specific concept in the current atlas.

    structural · Structural graph analysis — not a claim of importance, causation or history.

0%

cross-field
3 within-field, 0 cross-field

0 of 3 relations carry evidence · concept has a verified source

Strengths & constraints

Constraints

  • Evidence coverage currently thin in the atlas — few of its relationships carry claim-level evidence. atlas representation
  • No dated history stored — the atlas records no key date for this concept. atlas representation

Conditions

  • Read structurally — most of its relationships carry no external evidence yet, so claims here are graph-derived. structural

Dependency radial

What this concept builds on (left) and what it makes possible (right) — derived from dependency and causal relations.

PitchFundamental frequency◀ builds onenables ▶

Seen through each discipline

How this concept sits in each of its fields — derived from its real connections in the graph, not asserted.

Concepts that look related but are not yet connected here — candidates for a connection to reason about, not established links.

This idea also appears in…

The same structure shows up in other disciplines. These are real recurrences drawn from the graph — a starting point for asking “what carries over, and what changes?”

Oscillation22 disciplines · 22 concepts
Computer Science
Earth & Space Sciences
Oceanography
Audio Engineering
Civil Engineering
Climatology
Electrical Engineering
Electroacoustics
Macroeconomics
Mechanical Engineering
Music
Music Production
Musicology
Optics
Signal Processing
See the pattern →

Concepts

  • RhythmMusicBiologyMusicology

    shares a mental model

  • SeasonalityClimatologyEcologyEconomics

    shares a mental model

  • Business cycleEconomicsMacroeconomics

    shares a mental model

  • CircleMathematicsGeometry

    shares a mental model

  • CycleEarth & Space SciencesBiology

    shares a mental model

  • Low-frequency oscillatorMusic ProductionAudio Engineering

    shares a mental model

Mental models at work here

The scientific picture
  • Connects 3 other ideas across 3 disciplines.
  • A cross-disciplinary bridge — its connections reach into 3 other fields.
  • Most of its connections are of the “Kind & structure” kind.
  • It exercises 1 reusable thinking pattern.

Derived from the graph’s real structure — observations, not a score.

Sources