semitone


Also found in: Dictionary, Thesaurus, Wikipedia.

semitone

an interval corresponding to a frequency difference of 100 cents as measured in the system of equal temperament, and denoting the pitch difference between certain adjacent degrees of the diatonic scale (diatonic semitone) or between one note and its sharpened or flattened equivalent (chromatic semitone); minor second

Semitone

 

the smallest interval in European music. In the modern system of temperament, all semitones are equal, and there are 12 semitones in an octave.

There are three types of semitones: diatonic, chromatic, and enharmonic. The diatonic semitone is an interval between adjacent steps of a scale (for example, B to C, D to E flat [a minor second]). The chromatic semitone is the interval between a foundation and its raised or lowered variant (for example, F to F sharp, an augmented prime). The enharmonic semitone is the interval formed by the alteration of adjacent steps—for example, F double sharp to A flat, a double-diminished third (seeINTERVAL).

semitone

[′sem·i‚tōn]
(acoustics)
The interval between two sounds whose frequencies have a ratio approximately equal to the twelfth root of 2. Also known as half step.
References in periodicals archive ?
Quarter tones are frequently notated and indicated in vocal scores by composers today; use of them can become as everyday as singing semitones.
Entering on E[MUSICAL NOTES NOT REPRODUCIBLE IN ASCII] (D[MUSICAL NOTES NOT REPRODUCIBLE IN ASCII]: the last "correct" pitch in the piano), it ascends a fifth, alludes to the semitone "mistake" with a grace note, and finally completes the whole-tone ascent to C, but displaced to the wrong register.
In equal temperament (ET), twelve fifths are narrowed so that they equal seven octaves, and at the same time all twelve semitones in each octave are made equidistant.
00, the additive synthesis spectrum for this version will have the following frequencies (since the ratio between frequencies is constant, the interval in semitones is the same):
For example, on pages 204-5 we have in both versions the Boethian precepts regarding the relationship between the comma, the greater and lesser semitones and the tone.
In passing through each phase, the octave's lower note moves in each case a semitone higher in three of the six trombone parts, until reaching the upper note, and by this means opens the sound space of the pitch dimension in increasingly larger intervals.
The semitone advancement also ensures accurate documentation of changing patient capacity across time, and is likely more reliable and accurate than a pitch glide.
The major fifth is that which contains three whole tones with one semitone and is that fifth which is counted among the perfect consonances, and which musical authors define as consisting of the sesquialtera proportion; the minor fifth is that which contains two whole tones with two semitones and is not a consonant interval but is counted among the intervals that are truly discordant.
104; my italics); rather, instead of moving down a tone to C[sharp], the bass drops by a semitone only, thus aborting the expected I6-4 chord.
In the C major exercises the semitone will always be mi-fa, but it will occur sometimes in the beginning, sometimes in the middle and sometimes at the end of the tetrachord.
For example, the 10 January 1908 recordings of "Deserto in terra" from Donizetti's Don Sebastiano were "transposed down a semitone to C" (p.
Within a chromatic region, whichever one it is, the elementary relations of the smallest step to the largest (minor second to major seventh) correspond to the proportions of the total region: for example, the eighty-five semitone ninth and the following minor second, which should be even smaller (as it already is, in terms of expressiveness), namely the largest-smallest interval; or the correspondence may occur where such a largest-smallest interval adjusts by aligning to a largest interval to be its smallest correspondence, Example 28.