page_title: Diminished second
hierarchical_section_title: Diminished second
caption_attribution_description: English: Diminished second on C&#160;= D. Just: &#160;= 62.57 cents. Equal-tempered: 20/12:1&#160;= 0 cents. Nederlands: De verminderde seconde C - D. Verhouding gelijkzwevend: 2 0/12&#160;: 1 is gelijk 1. (0 cent).
context_page_description: In modern Western tonal music theory, a diminished second is the interval produced by narrowing a minor second by one chromatic semitone. It is enharmonically equivalent to a perfect unison. Thus, it is the interval between notes on two adjacent staff positions, or having adjacent note letters, altered in such a way that they have no pitch difference in twelve-tone equal temperament. An example is the interval from a B to the C♭ immediately above; another is the interval from a B♯ to the C immediately above.
  In particular, it may be regarded as the "difference" between a diatonic and chromatic semitone. For instance, the interval from B to C is a diatonic semitone, the interval from B to B♯ is a chromatic semitone, and their difference, the interval from B♯ to C is a diminished second.
  Being diminished, it is considered a dissonant interval.
context_section_description: In modern Western tonal music theory, a diminished second is the interval produced by narrowing a minor second by one chromatic semitone. It is enharmonically equivalent to a perfect unison. Thus, it is the interval between notes on two adjacent staff positions, or having adjacent note letters, altered in such a way that they have no pitch difference in twelve-tone equal temperament. An example is the interval from a B to the C♭ immediately above; another is the interval from a B♯ to the C immediately above.
  In particular, it may be regarded as the "difference" between a diatonic and chromatic semitone. For instance, the interval from B to C is a diatonic semitone, the interval from B to B♯ is a chromatic semitone, and their difference, the interval from B♯ to C is a diminished second.
  Being diminished, it is considered a dissonant interval.
caption: Diminished second About this soundPlay (help·info)
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