[Paper Review] Methods for Pitch Analysis in Contemporary Popular Music: Multiphonic Tones Across Genres
This study shows that electronic tones in contemporary popular music (e.g., 808 bass, power chords) are structurally and perceptually equivalent to multiphonics in contemporary classical music, eliciting listener-dependent pitch percepts.
This study argues that electronic tones routinely used in contemporary popular music - including 808-style bass and power chords - are structurally and perceptually equivalent to multiphonics in contemporary classical music. Using listening tests (n=10) and signal analysis, we show that both types of tones elicit multiple, listener-dependent pitch percepts arising from similar spectral and temporal features. These findings suggest that pitch ambiguity is not confined to experimental classical contexts but is also a feature of mainstream music production.
Motivation & Objective
- Motivate and justify applying multiphonics concepts from contemporary classical music to contemporary popular music tones.
- Demonstrate structural and perceptual equivalence between electronic tones and multiphonics.
- Compare human pitch perception with monophonic pitch trackers on isolated tones from both genres.
- Include Western contemporary classical material alongside electronic tones to broaden the scope of pitch analysis.
- Highlight implications for Music Information Retrieval practices that assume a single pitch per harmonic complex tone.
Proposed method
- Use listening tests with musically trained listeners (n=10) where participants match perceived pitches to a piano.
- Analyze single-tone samples (isolated tones) spanning quasi-harmonic, inharmonic, and specified versus unspecified pitch targets.
- Perform signal analysis incorporating spectral and temporal modeling to infer possible pitch associations (f0, upper partials, octave transpositions).
- Apply psychoacoustic weighting via equal-loudness contours (ISO226:2023 50-phon) to weight spectral components.
- Compare human pitch-perception outputs with monophonic pitch trackers (CREPE, PESTO) to assess convergence/divergence.
- Include input from electronic musician Vitalic and Hyper Music production to validate producer perspectives.

Experimental results
Research questions
- RQ1Do electronic tones used in popular music elicit multiple listener-perceived pitches like classical multiphonics?
- RQ2How do spectral/temporal features relate to the perceived pitch sets across quasi-harmonic and inharmonic tones?
- RQ3To what extent do monophonic pitch trackers align with human perceptual responses for these tones?
- RQ4Are there cross-genre consistencies in how pitches are perceived from isolated tones versus sequences?
- RQ5What are the implications for Music Information Retrieval assuming a single pitch per tone?
Key findings
- Electronic tones in popular music elicit multiple listener-perceived pitches, comparable in number to multiphonics observed in contemporary classical tones.
- Perceived pitches are generally harmonically related and often derive from subsets of salient partials, even for tones that are inharmonic.
- Tones intended to convey a single pitch still produce a weaker but similar multiphonic perception, suggesting a perceptual continuum rather than a strict dichotomy.
- Monophonic pitch trackers (CREPE, PESTO) frequently predict pitches corresponding to partials and show octave jumps, indicating the trackers reflect underlying spectral/temporal structure rather than failure alone.
- The study shows cross-genre applicability of multiphonics concepts and supports rethinking pitch representation in Music Information Retrieval for harmonic tones.
- Producer perspectives corroborate the relevance of multiphonic perception in mainstream production.

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This review was created by AI and reviewed by human editors.