Absolute Pitch Essay

1106 words - 4 pages

Absolute Pitch:
A Coveted Ability

Jennette Folta
Physics of Music
Spring 2005

The Basics

     Absolute pitch, otherwise known as AP, is a person's ability to identify and produce a given pitch. This is done without the use of a reference tone. Pitch is determined by the number of vibrations per second. There are two types of AP. Passive pitch is when a person can identify the name of the note that is played and active pitch is when a person can sing a named note. Absolute pitch possessors can name a note and denote if the note is sharp or flat. This ability is only displayed in only a small percent of people. It is said that less than one in ten thousand people in the United States possess AP. However, not only humans possess this ability. Songbirds and wolves have demonstrated absolute pitch. (http://www.biography.ms/Perfect_pitch.html) The components which influence the acquisition of AP in humans is debated and is a topic of recent study.

Background in Music

     The University of California San Francisco performed research on what causes this ability. One factor they found was the age at which the person had first formal musical training. The number of people who had AP was significantly more if they began learning music from the ages of four to six. A graph of this analysis is shown in figure 1. (Baharloo)

Figure 1. Background in Music

     In addition to a background in music, people who have AP are four times more likely to have other members of their family with AP than people who don't have AP. This suggests that genetics play a role in the formation of absolute pitch. In figure 2, you will see the family pedigree of some of some of members who were tested for AP by the University of California San Francisco. Also, they found that a sibling, who has early musical training, of a AP possessor is 15 times more likely to have AP than a person with early musical exposure but who has no family members with absolute pitch. (Baharloo)

Figure 2. Family Pedigrees


     In a study conducted by the University of California San Diego, they found that people who speak Mandarin or Vietnamese had a significantly higher chance of possessing AP. Since both of these languages are tone languages, recognizing pitch is essentially for conveying and understanding meanings of words. This suggests that the ability to aquire AP is universal. The study tested seven native speakers of Vietnamese and gave them a list of ten Vietnamese words to read outloud. The computer recorded each of their responses and calculated the differences of the average pitches among the subjects. The average pitch difference was less than 1.1 semitone. More than half of the subjects had pitch differences of less than .5 of a semitone. These subjects possess AP. In the second study they compared 15...

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