Definition of semitone
: the tone at a half step;
also
: half step
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Get Musical With the Definition of semitone
A semitone (sometimes called a half tone or a half step) is the distance from a white key to a neighboring black key on the piano keyboard—for example, from G to G-sharp or from E to E-flat. In an octave (from G to the next G above, for instance), there are twelve semitones. Semitones are the smallest intervals that are used intentionally in almost any of the music you'll normally hear. Two semitones equal a whole tone—the distance from G up to A or from E down to D, for example.
First Known Use of semitone
15th century
SEMITONE Defined for English Language Learners
Definition of semitone for English Language Learners
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music : a difference in sound that is equal to 1/12 of an octave
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See words that rhyme with semitone Britannica.com: Encyclopedia article about semitone
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