Relative pitch
Encyclopedia
The term relative pitch may denote:
  • the distance of a musical note from a set point of reference, e.g. "three octave
    Octave
    In music, an octave is the interval between one musical pitch and another with half or double its frequency. The octave relationship is a natural phenomenon that has been referred to as the "basic miracle of music", the use of which is "common in most musical systems"...

    s above middle C
    Middle C
    C or Do is the first note of the fixed-Do solfège scale. Its enharmonic is B.-Middle C:Middle C is designated C4 in scientific pitch notation because of the note's position as the fourth C key on a standard 88-key piano keyboard...

    "
  • a musician's ability to identify the intervals between given tones, regardless of their relation to concert pitch
    Concert pitch
    Concert pitch refers to the pitch reference to which a group of musical instruments are tuned for a performance. Concert pitch may vary from ensemble to ensemble, and has varied widely over musical history...

     (A = 440 Hz)
  • the skill used by singers to correctly sing a melody, following musical notation
    Musical notation
    Music notation or musical notation is any system that represents aurally perceived music, through the use of written symbols.-History:...

    , by pitching each note in the melody according to its distance from the previous note. Alternatively, the same skill which allows someone to hear a melody for the first time and name the notes relative to some known starting pitch.
  • developed through intense training, practicing hearing differences between major, minor, diminished, and augmented intervals


This last definition, which applies not only to singers but also to players of instruments who rely on their own skill to determine the precise pitch of the notes played (wind instruments, fretless string instruments like violin or viola, etc.), is an essential professional skill to be able to play with others. As an example think of the different concert pitch
Concert pitch
Concert pitch refers to the pitch reference to which a group of musical instruments are tuned for a performance. Concert pitch may vary from ensemble to ensemble, and has varied widely over musical history...

 used by orchestras playing music from different styles (a baroque orchestra with original instruments might decide to use a much lower pitch).

Unlike absolute pitch
Absolute pitch
Absolute pitch , widely referred to as perfect pitch, is the ability of a person to identify or re-create a given musical note without the benefit of an external reference.-Definition:...

 (sometimes called "perfect pitch"), relative pitch is quite common among musicians, especially musicians who are used to "playing by ear", and a precise relative pitch is a constant characteristic among good musicians. Also unlike perfect pitch, relative pitch is common among non-musicians and can be developed through ear training
Ear training
Ear training or aural skills is a skill by which musicians learn to identify, solely by hearing, pitches, intervals, melody, chords, rhythms, and other basic elements of music. The application of this skill is analogous to taking dictation in written/spoken language. Ear training may be...

.
Computer-aid ear training is becoming a popular tool for musicians and music students and various software is available for improving relative pitch.

Some music teachers teach their students relative pitch by having them associate each possible interval with the first two notes of a popular song. (See ear training
Ear training
Ear training or aural skills is a skill by which musicians learn to identify, solely by hearing, pitches, intervals, melody, chords, rhythms, and other basic elements of music. The application of this skill is analogous to taking dictation in written/spoken language. Ear training may be...

.) Another method of developing relative pitch is playing melodies by ear on a musical instrument, especially one which, unlike a piano or other fingered instrument, requires a specific manual adjustment for each particular tone. Indian musicians learn relative pitch by singing intervals over a drone
Drone (music)
In music, a drone is a harmonic or monophonic effect or accompaniment where a note or chord is continuously sounded throughout most or all of a piece. The word drone is also used to refer to any part of a musical instrument that is just used to produce such an effect.-A musical effect:A drone...

, which is also described by W. A. Mathieu
W. A. Mathieu
William Allaudin Mathieu is a composer, pianist, choir director, music teacher, and author. He studied with William Russo and Easley Blackwood, with North Indian vocalist Pandit Pran Nath for 25 years, and collaborated with Nubian master musician Hamza El Din Hamza El Din.In the 1960s, he spent...

 using western just intonation
Just intonation
In music, just intonation is any musical tuning in which the frequencies of notes are related by ratios of small whole numbers. Any interval tuned in this way is called a just interval. The two notes in any just interval are members of the same harmonic series...

 terminology. Many western ear training classes use solfège
Solfege
In music, solfège is a pedagogical solmization technique for the teaching of sight-singing in which each note of the score is sung to a special syllable, called a solfège syllable...

 to teach students relative pitch, while others use numerical sight-singing
Numerical sight-singing
Numerical sight-singing, an alternative to the solfege system of sight-singing, is a musical notation system that numbers the diatonic scale with the numbers one through eight . Scale degree...

.

Compound intervals (intervals greater than an octave) can be more difficult to detect than simple intervals (intervals less than an octave).

Interval recognition may allow musicians to identify complex chord types, or to accurately tune an instrument with respect to a given reference tone, even if the tone is not in concert pitch
Concert pitch
Concert pitch refers to the pitch reference to which a group of musical instruments are tuned for a performance. Concert pitch may vary from ensemble to ensemble, and has varied widely over musical history...

.

Relative pitch has not been known to develop into absolute or perfect pitch. Most North American universities develop relative pitch in their ear training courses. This can pose difficulties for students whose musicianship is more dependent on perfect pitch, although absolute and relative skills are not mutually exclusive.
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