AP Music Theory: Chapter 5

major: ionian mode

minor: aolian mode

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parallel minor

parallel major

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major scale: WWHWWWH

minor scale: WHWWHWW

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relative minor or major

  • the minor or major scale with the same key signature
  • go up 6 scale degrees to find relative minor
    • ex) C major → C, D, E, F, G, A -→ A minor
    • OR go down a third to find relative minor
    • ex) C major → C, B, A → A minor

C→ E is a third

E → C is a sixth because 3+6=9

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three forms of minor

  • natural minor
    • scale whose pitches exactly match the key signature of the relative major
    • the tonic differs
  • harmonic minor
    • raises the seventh scale degree from flat 7 to 7 to create a leading tone
    • distance from 6 to 7 is larger than a whole step it is an augmented second
  • melodic minor
    • differs in ascending and descending form
    • ascending: the 6th and 7th scale degrees are raised (which corresponds exactly to the major scale)
    • descending: identical to the natural minor

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natural

Ex) A B C D E F G A

pattern

harmonic

Ex) A B C D E F G# A

pattern: W H W W W W+H

melodic

Ex) A B C D E F# G# A

pattern up: WHWWWWH

pattern down: WHWWHWW

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leading from a tonic moment, departing from a tonic moment

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