Chapter 29 Quiz: Absolute Pitch, Relative Pitch & Musical Memory
Answer all 20 questions. Reveal each answer by clicking the disclosure triangle below each question. Questions marked † are suitable for extended written responses.
Question 1. Absolute pitch is best defined as the ability to:
(A) Hear frequencies more accurately than people without AP (B) Identify the pitch class of a tone without reference to an external standard (C) Sing any note on demand with perfect accuracy (D) Discriminate between two pitches that differ by less than one cent
Answer
**(B) Identify the pitch class of a tone without reference to an external standard.** AP is specifically about categorical pitch identification — assigning a note name — without needing a reference tone to compare to. It does not require superior frequency discrimination (A), the ability to produce pitches (C), or fine-grained JND sensitivity (D). Many people without AP have better JND discrimination than AP possessors. The key feature is the automatic, reference-free identification of pitch categories.Question 2. What is the approximate prevalence of absolute pitch in the general Western population?
(A) 1 in 100 (B) 1 in 1,000 (C) 1 in 10,000 (D) 1 in 1,000,000
Answer
**(C) 1 in 10,000.** Studies consistently find approximately 1 in 10,000 in the general Western population. This rises to about 1 in 1,500 among university music students and 1 in 500 at elite conservatories. The prevalence is dramatically higher in East Asian populations, particularly among those who began musical training before age 5.Question 3. The Deutsch et al. (2006) study found that students at the Shanghai Conservatory showed AP rates approximately how many times higher than comparable U.S. conservatory students?
(A) Twice as high (B) About four times as high (C) About the same (D) Ten times as high
Answer
**(B) About four times as high.** Approximately 60% of Shanghai Conservatory first-year students showed AP, compared to roughly 14% of comparable U.S. conservatory students — a ratio of about 4–5 to 1. This difference is even larger when controlling for the age at which musical training began. The finding is one of the strongest pieces of evidence for the role of cultural-linguistic environment in AP development.Question 4. Which of the following is NOT a documented source of error in absolute pitch identification?
(A) Octave confusions (calling C4 "C5") (B) Age-related upward drift of the internal pitch standard (C) Instrument timbre (AP is less accurate on unfamiliar instruments) (D) Time of day (AP is worse in the morning)
Answer
**(D) Time of day (AP is worse in the morning).** Time of day is not a documented systematic source of AP error. The documented sources of AP error include: octave confusions (A) — very common; age-related upward drift (B) — well-documented in older AP possessors; and timbre effects (C) — AP is most accurate on the piano and least accurate on unfamiliar or synthetic timbres. There is also a documented bias in musicians who primarily play transposing instruments.Question 5. The "critical period" for absolute pitch acquisition closes at approximately what age?
(A) Age 2 (B) Age 6–7 (C) Age 12 (D) Age 18
Answer
**(B) Age 6–7.** The evidence converges on a critical period that is most sensitive between ages 2 and 5, with closure occurring around age 6–7. This is consistent with other critical periods in sensory development (such as phoneme acquisition). After this window closes, training cannot produce the categorical, effortless, automatic pitch identification that characterizes "true" AP. This is why adult AP training programs, while useful for labeling practice, cannot produce genuine AP.Question 6 †. Which of the following best explains why tonal language speakers show higher rates of absolute pitch?
(A) Tonal languages train speakers to produce specific pitches more accurately (B) Tonal languages require categorical, stable pitch identification from early infancy — the same perceptual process AP requires (C) Tonal language speakers have more sensitive cochleae due to early linguistic exposure (D) Tonal languages have more musical vocabulary that transfers to note naming
Answer
**(B) Tonal languages require categorical, stable pitch identification from early infancy — the same perceptual process AP requires.** In tonal languages, pitch is phonemic — the same syllable means different things at different pitch categories. Speakers must treat pitch as a categorical, stable, meaningful auditory dimension from the earliest stages of language acquisition. This is structurally identical to what AP requires in musical pitch. Options (A), (C), and (D) are not supported by the evidence: tonal language speakers do not show superior cochlear sensitivity, and the mechanism is categorical pitch memory, not production or vocabulary.Question 7. Categorical perception of pitch means that AP subjects:
(A) Cannot perceive pitches that fall between note categories (B) Perceive pitch as snapping into discrete categories rather than varying continuously (C) Have larger just-noticeable differences than non-AP listeners (D) Cannot compare the relative height of two pitches
Answer
**(B) Perceive pitch as snapping into discrete categories rather than varying continuously.** Categorical perception means that when pitch varies continuously (e.g., in a sweep from C to C#), AP subjects perceive a sharp boundary between the two categories, rather than a gradual transition. They can still perceive pitches that fall between notes (A is incorrect) — they just tend to "snap" them to one category or the other, much as phoneme perception snaps ambiguous speech sounds to one phoneme or another.Question 8. Which of the following is the most accurate statement about the relationship between absolute pitch and musical ability?
(A) AP is strongly correlated with musical talent and predicts long-term musical achievement (B) AP possessors consistently outperform non-AP musicians on all musical tasks (C) AP is neither necessary nor sufficient for musical excellence; many highly accomplished musicians do not have it (D) AP possessors are unable to develop strong relative pitch skills because AP takes up the relevant cognitive resources
Answer
**(C) AP is neither necessary nor sufficient for musical excellence; many highly accomplished musicians do not have it.** Many highly celebrated composers, performers, and conductors did not have AP. AP provides effortless note naming and some ear training advantages, but it is not the engine of musical competence. Most musical skills — sight-reading, improvisation, expressive performance, harmonic understanding — depend on relative pitch and procedural skills that are independent of AP. Option (D) is incorrect: most AP possessors also develop excellent relative pitch.Question 9. George Miller's "7 ± 2" rule refers to:
(A) The number of musical notes a person can discriminate in a single chord (B) The approximate capacity of working memory in chunks of information (C) The number of years of practice required for expert musical performance (D) The frequency range within which absolute pitch identification is most accurate
Answer
**(B) The approximate capacity of working memory in chunks of information.** Miller's 1956 paper established that working memory can hold approximately seven (plus or minus two) chunks of information at once. The critical word is "chunks" — a chunk can contain much information if the learner has the knowledge to compress it. For music, this means expert musicians can hold more music in working memory than novices, because their chunks are larger (phrases, not notes).Question 10. Long-term working memory (LTWM) in expert musicians functions primarily through:
(A) Permanently enlarged short-term memory capacity (B) Retrieval cues stored in long-term memory that allow rapid access to relevant musical patterns (C) The complete elimination of short-term memory limitations through practice (D) Enhanced hippocampal consolidation during performance
Answer
**(B) Retrieval cues stored in long-term memory that allow rapid access to relevant musical patterns.** Ericsson and Kintsch's LTWM model holds that experts do not have literally larger working memories, but rather have developed retrieval structures — patterns, schemas, and associations in long-term memory — that allow them to quickly encode incoming information into retrievable forms and access relevant stored knowledge on demand. Musicians' tonal schemas (knowing how music typically behaves in a given style) are examples of these retrieval structures in action.Question 11. Derek Paravicini is significant to music psychology because his case demonstrates:
(A) That AP is always associated with autism (B) That musical capacity can exist with extraordinary richness in the absence of general cognitive ability (C) That blind musicians consistently outperform sighted musicians (D) That AP possessors have better motor memory than non-AP musicians
Answer
**(B) That musical capacity can exist with extraordinary richness in the absence of general cognitive ability.** Paravicini has severe intellectual disability and blindness, yet plays the piano at a level that astonishes professionals, can reproduce any heard piece in any key, and improvises stylistically across genres. His case demonstrates a degree of neural independence for musical processing — that the "how" of music does not depend on general intelligence, language, or explicit self-knowledge. He can do music without knowing what he is doing or being able to explain it.Question 12. The "eye-hand span" in expert sight-reading refers to:
(A) The distance between the musician's eyes and their hands while performing (B) The number of notes ahead of the currently performed note that the sight-reader is reading (C) The number of flats and sharps the sight-reader can process in a key signature (D) The accuracy with which sight-readers identify notes by position on the staff
Answer
**(B) The number of notes ahead of the currently performed note that the sight-reader is reading.** Expert sight-readers maintain a "buffer" of upcoming musical information — reading several notes or beats ahead of what they are currently playing. This forward reading span (eye-hand span) allows the motor system to plan ahead, reducing the cognitive pressure on real-time decoding. Novices often read at or behind the current note; experts read 2–4 or more notes ahead. Developing a larger eye-hand span is a key goal of sight-reading training.Question 13. Which feature is LEAST associated with a high probability of becoming an earworm?
(A) High repetition within the song (B) Complex, irregular rhythmic patterns (C) Upward melodic leaps (D) Recent exposure
Answer
**(B) Complex, irregular rhythmic patterns.** Earworm-prone melodies tend to be rhythmically simple and regular — easy for the brain to "continue" automatically. Complex, irregular rhythms are harder to internally continue in the absence of external stimulus, making them less likely to become stuck. The other features — repetition (A), upward leaps (C), and recent exposure (D) — are all positively associated with earworm probability, as established in the research literature.Question 14. According to the "cognitive itch" model, earworms arise from:
(A) Random activation of auditory memory traces during rest states (B) An unresolved melodic expectation that the brain keeps trying to complete (C) Emotional associations triggering involuntary auditory imagery (D) Damage to the prefrontal cortex's inhibitory control over the auditory system
Answer
**(B) An unresolved melodic expectation that the brain keeps trying to complete.** The cognitive itch model proposes that earworms arise when a melody generates a musical expectation that is not fully satisfied — like a question without an answer. The brain repeatedly "plays" the melody in an attempt to reach resolution, creating the stuck-song loop. This connects to the broader framework of musical expectation and prediction explored in Chapter 28. The model explains why earworms often get stuck at a specific structural point, just before a resolution.Question 15. The most effective documented method for terminating an unwanted earworm is:
(A) Actively trying to suppress the melody through force of will (B) Replacing it immediately with a different song (C) Completing the song mentally to its natural resolution (D) Listening to loud noise for 30 seconds
Answer
**(C) Completing the song mentally to its natural resolution.** Research consistently finds that allowing the earworm melody to reach its natural structural conclusion — the "satisfying" the cognitive itch — is the most reliably effective termination strategy. Active suppression (A) tends to backfire, as thought suppression is generally counterproductive (the "white bear" problem in cognitive psychology). Replacement (B) works but risks substituting one earworm for another. Loud noise (D) is not a documented strategy.Question 16. What is the most remarkable finding about musical memory and aging?
(A) Musical memory declines at the same rate as episodic memory in aging (B) Musical memory for recent experiences is better preserved than for early childhood music (C) Familiar, well-learned musical memory shows unusual resilience in aging, even in neurodegenerative disease (D) Musicians age more slowly cognitively but show faster musical memory decline than non-musicians
Answer
**(C) Familiar, well-learned musical memory shows unusual resilience in aging, even in neurodegenerative disease.** One of the most striking findings in music neuroscience is that Alzheimer's patients who cannot recognize family members or recall recent events can often sing along to music from their youth and recognize their musical favorites. This resilience is attributed to the distributed, multi-system storage of well-consolidated musical memories — across the basal ganglia, amygdala, hippocampus, and temporal cortex — providing redundancy against focal neurodegeneration.Question 17. The planum temporale (PT) asymmetry finding in AP research refers to the observation that:
(A) AP possessors have a larger right PT than non-AP musicians (B) AP possessors show greater leftward PT asymmetry than non-AP musicians, who show greater asymmetry than non-musicians (C) The PT of AP possessors is smaller overall but more efficiently organized (D) PT asymmetry is only found in musicians who also speak tonal languages
Answer
**(B) AP possessors show greater leftward PT asymmetry than non-AP musicians, who show greater asymmetry than non-musicians.** The Schlaug et al. (1995) finding, replicated multiple times, shows a graded pattern: AP > non-AP musicians > non-musicians in leftward PT asymmetry. The leftward asymmetry of the PT is associated with categorical auditory processing — both speech phoneme perception and musical pitch-category identification. The graded pattern suggests both a genetic predisposition component and an experience-dependent plasticity component.Question 18. Which of the following statements about teaching AP to adults is best supported by the research?
(A) AP can be fully developed in motivated adults through intensive practice over 6–12 months (B) Adults can improve pitch labeling speed and accuracy through training, but this does not produce the categorical, automatic identification of true AP (C) Adults over 30 cannot improve pitch identification at all through training (D) AP training in adults is most effective when combined with tonal language learning
Answer
**(B) Adults can improve pitch labeling speed and accuracy through training, but this does not produce the categorical, automatic identification of true AP.** Multiple controlled studies have attempted to train AP in adults. Participants improve on pitch labeling tasks, but they do not develop the characteristic features of true AP: categorical snap, effortless identification, stability across instruments and contexts, generalization without reference tones. The critical period has closed; what improves through training is labeling performance, not the underlying perceptual system. This is a meaningful and useful improvement, but it is not AP.Question 19 †. The term "procedural memory" in the context of musical performance refers to:
(A) The knowledge of music theory rules and notation conventions (B) The memory for specific musical events and performances one has attended (C) The automatic, implicit skill knowledge that supports performance without conscious attention (D) The ability to read and follow a musical score during performance
Answer
**(C) The automatic, implicit skill knowledge that supports performance without conscious attention.** Procedural memory is the "how" of skilled action — the motor programs, timing patterns, and sensorimotor schemas that support performance without conscious deliberation. A pianist's procedural memory contains the finger movements, voicing tendencies, and physical execution of their repertoire. This is distinct from declarative knowledge of theory (A), episodic memory for performances (B), or score-reading ability (D). The transition from declarative to procedural — "getting it in the fingers" — is a hallmark of musical skill development.Question 20 †. The thought experiment "if everyone had AP" suggests that the rarity of AP in Western populations has:
(A) Impoverished Western musical traditions by eliminating access to absolute pitch information (B) Been evolutionarily neutral and has no effect on musical culture (C) Driven the development of elaborate systems of relative pitch cognition that may be more musically generative (D) Caused Western musicians to rely too heavily on notation and not enough on ear training