Absolute pitch is extremely rare in the U.S. and Europe; this rarity has so far been unexplained. This paper reports a substantial difference in the prevalence of absolute pitch in two normal populations, in a large-scale study employing an on-site test, without self-selection from within the target populations. Music conservatory students in the U.S. and China were tested. The Chinese subjects spoke the tone language Mandarin, in which pitch is involved in conveying the meaning of words. The American subjects were nontone language speakers. The earlier the age of onset of musical training, the greater the prevalence of absolute pitch; however, its prevalence was far greater among the Chinese than the U.S. students for each level of age of onset of musical training. The findings suggest that the potential for acquiring absolute pitch may be universal, and may be realized by enabling infants to associate pitches with verbal labels during the critical period for acquisition of features of their native language.
An illusion is explored in which a spoken phrase is perceptually transformed to sound like song rather than speech, simply by repeating it several times over. In experiment I, subjects listened to ten presentations of the phrase and judged how it sounded on a five-point scale with endpoints marked "exactly like speech" and "exactly like singing." The initial and final presentations of the phrase were identical. When the intervening presentations were also identical, judgments moved solidly from speech to song. However, this did not occur when the intervening phrases were transposed slightly or when the syllables were presented in jumbled orderings. In experiment II, the phrase was presented either once or ten times, and subjects repeated it back as they finally heard it. Following one presentation, the subjects repeated the phrase back as speech; however, following ten presentations they repeated it back as song. The pitch values of the subjects' renditions following ten presentations were closer to those of the original spoken phrase than were the pitch values following a single presentation. Furthermore, the renditions following ten presentations were even closer to a hypothesized representation in terms of a simple tonal melody than they were to the original spoken phrase.
Absolute pitch is generally considered to reflect a rare musical endowment; however, its characteristics are puzzling and its genesis is unclear. We describe two experiments in which native speakers of tone languages——Mandarin and Vietnamese——were found to display a remarkably precise and stable form of absolute pitch in enunciating words. We further describe a third experiment in which speakers of English displayed less stability on an analogous task. Based on these findings, and considering the related literatures on critical periods in speech development, and the neurological underpinnings of lexical tone, we propose a framework for the genesis of absolute pitch. The framework assumes that absolute pitch originally evolved as a feature of speech, analogous to other features such as vowel quality, and that speakers of tone language naturally acquire this feature during the critical period for speech acquisition. We further propose that the acquisition of absolute pitch by rare individuals who speak an intonation language may be associated with a critical period of unusually long duration, so that it encompasses the age at which the child can take music lessons. We conclude that the potential to acquire absolute pitch is universally present at birth, and that it can be realized by enabling the infant to associate pitches with verbal labels during the critical period for speech acquisition.
Absolute pitch (AP), the ability to name a musical note in the absence of a reference note, is extremely rare in the U.S. and Europe, and its genesis is unclear. The prevalence of AP was examined among students in an American music conservatory as a function of age of onset of musical training, ethnicity, and fluency in speaking a tone language. Taking those of East Asian ethnicity, the performance level on a test of AP was significantly higher among those who spoke a tone language very fluently compared with those who spoke a tone language fairly fluently and also compared with those who were not fluent in speaking a tone language. The performance level of this last group did not differ significantly from that of Caucasian students who spoke only nontone language. Early onset of musical training was associated with enhanced performance, but this did not interact with the effect of language. Further analyses showed that the results could not be explained by country of early music education. The findings support the hypothesis that the acquisition of AP by tone language speakers involves the same process as occurs in the acquisition of a second tone language.
Absolute pitch (AP), the ability to name a musical note in the absence of a reference note, is extremely rare in the United States and Europe, and its genesis is unclear. The prevalence of AP was examined among students in an American music conservatory, as a function of age of onset of musical training, ethnicity, and fluency in speaking a tone language. Taking those of East Asian ethnicity, the performance level on a test of AP was significantly higher among those who spoke a tone language very fluently than among those who spoke a tone language fairly fluently, which was in turn higher than among those who were not fluent in speaking a tone language. The performance level of this last group did not differ significantly from that of Caucasian students who spoke only intonation language. An advantage to early onset of musical training was found, but did not interact with the effect of language. Further analyses showed that the results could not be explained by country of early music education. The findings support the hypothesis that the acquisition of AP by tone language speakers involves the same process as occurs in the acquisition of a second tone language.
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