PWR-149 · Music, Voice & Rhythm

Polyphonic listening

Visual cues can assist auditory stream segregation in a defined task; unaided trainability and broad transfer are not established.

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One source of teaching truth

Canonical Power learning unit · TLU-PWR-149

The learner correctly identifies the active target line at eight of ten checkpoints and completes two planned line switches in a short two-part excerpt.

Canonical Power page
PWR-149 · Polyphonic listening
Full tutorial
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Practical authority
The tutorial teaches a low-risk method that may be practised inside its stated limits.
Current treatment
Full low-stakes tutorial
Research depth
focused · 3 bound sources
Risk framing
low to moderate
Capability self-practice
Permitted inside the tutorial's stated low-risk limits
Pathway membership
G-CUR-016

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Explanation is not permission.

This dossier explains the evidence and its limits. It is not a diagnosis, personal recommendation, assessment, clearance, performance promise or training programme. Actionable teaching appears only when the canonical Power record explicitly authorises it.

Complete bounded explanation

What this power means.

Capability to develop or express polyphonic listening in a declared context without inheriting broader claims.

What the current evidence supports

Visual cues can assist auditory stream segregation in a defined task; unaided trainability and broad transfer are not established.

How to observe or measure it without overclaiming

Source-identification accuracy and separation error across declared mixtures, levels and cue-on/off conditions. Acoustic or timing accuracy does not by itself establish artistry, health, transfer or universal talent.

Myth

Training lets you isolate every sound in any mix

Metric

Source-identification accuracy and separation error across declared mixtures, levels and cue-on/off conditions

Boundary

Source-identification accuracy and separation error across declared mixtures, levels and cue-on/off conditions. Acoustic or timing accuracy does not by itself establish artistry, health, transfer or universal talent.

Negative and limiting findings

  • The evidence concerns cue-assisted performance rather than unaided learning and does not establish retention.
  • No evidence supports perfect, limitless or universal performance.

Claims this evidence cannot support

  • Hear every instrument perfectly
  • Musicians have universally superior hearing
  • Louder practice sharpens listening

Individual tutorial · FULL SELF GUIDED TUTORIAL

How to learn this Power now.

The learner correctly identifies the active target line at eight of ten checkpoints and completes two planned line switches in a short two-part excerpt.

  1. Get readyPrepare a 20–40 second two-part musical excerpt with legal isolated stems and a written timeline
  2. Learn the method7 concrete steps teach the permitted method from start to finish.
  3. See right and wrong5 comparisons show correct or safer execution beside common wrong or riskier choices.
  4. PractiseOn the next session, use the same excerpt but remove the colour trace only after both shuffled stems are identified correctly. On a third session, remove one isolated-stem reminder and repeat the ten checkpoints plus both directed switches. Progress when at least eight checkpoints and both switches remain correct and the log names exactly which support was absent.
  5. Check progressFor Polyphonic listening, measure Source-identification accuracy and separation error across declared mixtures, levels and cue-on/off conditions. Keep the polyphonic listening fixture stable. Target: The learner correctly identifies the active target line at eight of ten checkpoints and completes two planned line switches in a short two-part excerpt. Log polyphonic listening errors, prompts, burden and stops.

Authority boundary: Titan teaches a concrete low-stakes method step by step while keeping evidence and transfer claims bounded. The method is Power-specific; its actionability follows this treatment.

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Related Powers: PWR-145 · PWR-146 · PWR-147 · PWR-148

Direct evidence register

Sources that support—and limit—the claim.

Citation roles are explicit. A source may support existence or trainability while simultaneously limiting transfer, certainty, generalisation or safety.

  1. Primary empirical supportLimiting / contrary
    The effect of visual cues on auditory stream segregation in musicians and non-musicians

    Marozeau J; Innes-Brown H; Grayden DB; Burkitt AN; Blamey PJ · 2010 · Primary research

  2. Limiting / contraryOfficial boundary context
    Deafness and hearing loss: Safe listening

    World Health Organization · 2026 · Official authority

  3. Limiting / contraryOfficial boundary context
    Traditional Cultural Expressions

    World Intellectual Property Organization · 2026 · Official authority

Current teaching and evidence boundary

The next gate remains visible.

External confirmation is required before higher-authority use because: cultural, community-rights or affected-person authority.

A Power-specific tutorial is available at /tutorials/pwr-149/. It contains a plain-English method, 7 ordered steps, a worked example, right-versus-wrong comparisons, specific mistakes and corrections, practice, measurement, accessibility, stopping rules and evidence. Its self guided mode remains controlling.