Main Page | See live article | Alphabetical index The musical interval of a Major seventh the first note (the root or tonic) and the seventh, the leading tone, in a major scale. It is the inversion of the minor second. It can be produced by starting on a high note and playing the seventh below or by starting on a low note and playing the seventh above. A Major seventh in just intonation corresponds to a pitch ratio of 15:8 or 1:1.875, or various other ratios, while in an equal tempered tuning it is a ratio of 1:211/12 (approximately 1.887), or 1100 cents, 11.731 centss sharp of 15:8. The Major seventh is considered the second most dissonant interval after its inversion the minor second. See also: musical tuning This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.