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Scale (music) - MSN Encarta |
 | | Scale (music) (Italian scala, “ladder”), the arrangement, by rising or falling pitch sequence, of the notes used in a musical system. |
 | | These scales have a repeating sequence of semitones (on the white notes, E-F and B-C), and whole tones (between all other adjacent tones); and they have seven notes per octave (the eighth note in such a series is simply the repetition of the first note an octave higher). |
 | | By the late 19th century, because of the ever-increasing use of sharpened and flattened notes, Western music was based not on diatonic scales, but on a chromatic scale: 12 notes within the octave, all a semitone apart—C C-sharp D D-sharp E F F-sharp G G-sharp A A-sharp B (C). |
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