Minor second

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minor second
Inverse major seventh
Name
Other names diatonic semitone
Abbreviation m2
Size
Semitones 1
Interval class 1
Just interval 16:15
Cents
Equal temperament 100
24 equal temperament 100
Just intonation 112
Minor second on C. <phonos file="Minor second on C.mid">Play</phonos>

In modern Western tonal music theory a minor second is the interval between two notes on adjacent staff positions, or having adjacent note letters, whose alterations cause them to be one semitone or half-step apart, such as B and C or C and D.[1] The interval is also called a diatonic semitone.

Its inversion is a major seventh.

A helpful way to recognize a minor second is to hum the first two notes of "Rosemary's Lullaby".[citation needed]

In other temperaments

In just intonation a 16:15 minor second arises in the C major scale between B & C and E & F, and is, "the sharpest dissonance found in the [major] scale."[2] <phonos file="Just minor second in scale.mid">Play B & C</phonos>

See also

References

  1. Lua error in package.lua at line 80: module 'strict' not found. (subscription needed)
  2. Paul, Oscar (1885). A manual of harmony for use in music-schools and seminaries and for self-instruction, p.165. Theodore Baker, trans. G. Schirmer.


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