Science Fair Project Encyclopedia
The musical interval of a major second — also called a whole-tone — is the relationship between the first note (the root or tonic) and the second note in a major scale (and also a minor scale). It is the inversion of the minor seventh. It is abbreviated as M2.
It can be produced by starting on a high note and playing the second below or by starting on a low note and playing the second above.
A major second in just intonation most often corresponds to a pitch ratio of 9:8 or 1:1.125, or various other ratios, while in an equal tempered tuning, a major second is equal to two semitones, a whole-tone, a ratio of 1:22/12 (approximately 1.122), or 200 cents, 3.910 cents smaller. Two whole tones create a ditone, 9:82.
|# semitones||Interval class||# cents in equal temperament||Most common diatonic name||Comparable just interval||# cents in just interval||Just interval vs. equal-tempered interval|
|2||2||200||major second||9:8||204||4 cents larger|
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details