Mus121 1.19.2011 - -Different patters of tension/resolution...

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Mus121 (1/19/2011) Tonality, Scale, Key Tonality : Law of nature or habit of thought? A law of nature “interpreted” differently by different cultures. - Octave is given; scales are not. - Major and minor scaled common in West since 1700. - Each a particular, asymmetrical arrangement of whole and half steps. (Accidentals, sharps, flats.) In a major scale: - ½ steps between 3 &4, 7&8; - Patterns of tension/resolution “built in” (e.g., 7 th scale degree as “leading tone”, pulls towards tonic); - 5 th scale degree is dominant; triad on 5 th scale degree is dominant chord (V chord); - V chord helps to establish tonic (V-I cadence); in minor scales: - 3d scale degree is ½ step lower (smaller 3d); - Other scale degrees may be lowered too;
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Unformatted text preview: -Different patters of tension/resolution (esp. if 7 th scale degree lowered); SO-Different expressive quality than major scale/key.-No strong gravitational pull towards any one note. Diatonic : Melody/harmony based on notes of single major or minor scale. Chromatic : Melody/harmony introduces notes foreign to given major/minor scale. Broadens tonal palette. Modulation : A change of key (harmonic journey; new perspective).-Helps create form;-Arouses expectation of return to original tonic. A return does not simply mean it is repetition. Its different because we have been somewhere else and are now RETURNING back....
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