quarter tone

/ˈkwɔrtərˌtoʊn/
noun
  1. A musical interval that is half the size of a half-step (semitone), equal to one-quarter of a whole tone. It is used in some non-Western music and modern classical compositions.
    • Learning to sing quarter-tones accurately requires a very sensitive ear.
    • The composer used quarter-tones to create a haunting, unfamiliar melody.
    • In traditional Arabic music, quarter-tones are common and give the scale its distinctive sound.
Synonyms
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