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Lecture 7 - February 23

Lecture 7 - February 23 - Lecture 7 17th century Vivaldi...

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Lecture 7 2/23/09 17 th century Vivaldi, Bach, Handel o Ionian -> Major scale o C D E F G A [B C] o Ionian was 6 notes, now the major scale expansion has B C o This pitch creates a tension with upward resolution o Distinction – has to do with introduction of 7 th pitch = “leading tone” o Leading to a repeat of first pitch, except an octave higher o Only white keys o 2 natural semitones (half-steps) Between E F, B C Half step between 3 & 4, 7 & 8 = define major scale o Sense of drama, then tension release o Aeolian -> Minor o A B C D E F [G# A] o Aeolian was 6 pitches o Semitone between 2&3 (B C), 5 & 6 Creates distinction of sound o Minor scale = introduction of 7 th pitch o To create tension and upward resolution -> add sharp to G o Definition : 3 semi tones in minor: 2&3, 5&6, 7&8 C-Major Scale: A pitch collection, with antecedent in the Ionian mode, containing the pitches CD EF GA BC . A semitone falls between the third and fourth pitches, and between the leading tone (B) and the octave (C). A-Minor Scale: A pitch collection, with antecedent in the Aeolian mode, containing the pitches A BC D EF G [#]A . Semitones fall between the second and third and fifth and sixth pitches. The pitch G is often raised to G sharp, which adds another semitone relationship (with G sharp [G#] as leading tone to A) o Build major scale on any pitch knowing where half and whole steps occur
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