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The Algerian Scale is a scale which is frequently found in Algerian, Berber, and North African music. The frequent use of 1.5 steps(or whole-and-a-half steps) in the scale helps create a sound which is commonly associated with Moorish music. It is also defined as an eleven note scale containing two augmented seconds. This was used by Jacques Ibert in ''Escales'' (1924).〔Robert Fink, Robert Ricci (1975). ''The Language of Twentieth Century Music: A Dictionary of Terms'', p.3. Schirmer Books. ISBN 0-02-870600-5, ISBN 978-0-02-870600-9.〕 == Scale formula == In step notation: * W, H, WH, H, H, WH, H * W = Whole step * H = Half step * WH = Whole-and-a-half step or in decimals: * 1 step + 0.5 step + 1.5 step + 0.5 step + 0.5 step + 1.5 step + 0.5 step. Note that this formula gives the first octave only. In the second octave, the third step will be 1 rather than 1.5, followed by a step of 1 rather than 0.5. This may be seen in image to the right. The lower octave shows an F# while the upper octave shows an F natural. 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「Algerian scale」の詳細全文を読む スポンサード リンク
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