Limma
Encyclopedia
The word limma or leimma (remnant) can refer to several different musical intervals
Interval (music)
In music theory, an interval is a combination of two notes, or the ratio between their frequencies. Two-note combinations are also called dyads...

, whose only common property is their small size:
  • The original Pythagorean limma, 256/243, a Pythagorean interval
    Pythagorean interval
    In musical tuning theory, a Pythagorean interval is a musical interval with frequency ratio equal to a power of two divided by a power of three, or vice versa...

     .

  • The 5-limit
    Limit (music)
    In music theory, limit or harmonic limit is a way of characterizing the harmony found in a piece or genre of music, or the harmonies that can be made using a particular scale. The term was introduced by Harry Partch, who used it to give an upper bound on the complexity of harmony; hence the name...

     limma (now a diesis
    Diesis
    In classical music from Western culture, a diesis is either an accidental , or a comma type of musical interval, usually defined as the difference between an octave and three justly tuned major thirds , equal to 128:125 or about 41.06 cents...

    ), 128/125, the amount by which three just major third
    Major third
    In classical music from Western culture, a third is a musical interval encompassing three staff positions , and the major third is one of two commonly occurring thirds. It is qualified as major because it is the largest of the two: the major third spans four semitones, the minor third three...

    s fall short of an octave .

  • The major limma
    Major limma
    Major limma is an interval with the ratio of 135:128, which is the difference between two major tones and a minor third. It is equal to about 92.18 cents....

    , 135/128, which is the difference between two major whole tones
    Major second
    In Western music theory, a major second is a musical interval spanning two semitones, and encompassing two adjacent staff positions . For example, the interval from C to D is a major second, as the note D lies two semitones above C, and the two notes are notated on adjacent staff postions...

     and a minor third
    Minor third
    In classical music from Western culture, a third is a musical interval encompassing three staff positions , and the minor third is one of two commonly occurring thirds. The minor quality specification identifies it as being the smallest of the two: the minor third spans three semitones, the major...

    .

  • The 5-limit diatonic semitone, 16/15 . Although closer in size to the Pythagorean apotome than to the limma, it has been so called because of its function as a diatonic semitone rather than a chromatic one.
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