MUS 069A Chapter Notes - Chapter 7: Tetrachord, Major Scale
20 Sep 2017
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Document Summary
Unifying concepts previously learned by revisiting major and minor scales, through intervallic structures. Will provide firmer, more stable basis for scale-structure comprehension while also reinforcing interval recognition. Scales and intervals are complementary as to be almost inseparable. View major scale as constructed of either major or perfect intervals as measured up from the tonic. Scale increments are either major seconds or minor seconds. Second, third, sixth, and seventh scale degrees are major intervals when measured from tonic. Note: minor seconds are found between scale degrees 3 and 4 and between 7 and 8. In all minor scales, ascending interval from tonic to mediant (three scale degree) is a minor third. Lower tetrachord is the same for all forms of minor scale: F minor scale is used as model in all examples: Upper tetrachord in natural minor, we have m2, m2, m2. Note: all forms of minor and major, 4th, 5th, and octave are always perfect intervals.
