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The major scale or Ionian scale is one of the most commonly used musical scales, especially in Western music. It is one of the diatonic scales. Like many musical scales it is made up of seven notes: the eighth duplicates the first at double its frequency so that it is called a higher octave of the same note (from Latin "octavus", the eighth). The simplest major scale to write is C major, the only major scale not to require sharps or flats: : C-D-E-F-G-A-B-C () The major scale had a central importance in European music, particularly in the common practice period and in popular music, owing to the large number of chords that can be formed from it. In Hindustani classical music it is known as ''Bilaval''. ==Structure== A major scale is a diatonic scale. The sequence of intervals between the notes of a major scale is: * whole, whole, half, whole, whole, whole, half where "whole" stands for a whole tone (a red u-shaped curve in the figure), and "half" stands for a semitone (a red broken line in the figure). A major scale may be seen as two identical tetrachords separated by a whole tone. Each tetrachord consists of two whole tones followed by a semitone: * whole, whole, half. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Major scale」の詳細全文を読む スポンサード リンク
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