AP Music Theory Chapter 3

Scale

an ordered collection of pitches in whole and half step patterns

Chromatic Scale

a symmetrical scale with all pitches spaced a half step apart

Major Scale

w-whole h-half
W W H W W W H

Key

a specific series of pitches based on a pattern of whole and half steps that define a tonality

Tonality

the principal of organizing a composition around that key note or tonic

Key Signature

written at the beginning of every staff shows which pitches are to be sharp or flat consistently throughout the piece and helps determind the key or tonal center (tonality)

Order of Sharps

F C G D A E B (fat chickens go dancing after eating burritos)
half step above the last sharp is generally the key

Order of Flats

B E A D G C F
next to last flat is generally the key

Natural Minor Scale

W H W W H W W (lowered 3, 6 and 7 scale degrees)

Relative (Natural) Minor

major and minor scales that have the same pitches and therefore the same key signature (C Major & A minor)

Harmonic Minor Scale

lowered 3 and 6 scale degrees

Melodic Minor Scale

on way up lower 3, on way down lower 3, 6, 7

Major Solfege

Do Re Mi Fa So La Ti Do

Natural Minor Solfege

Do Re Me Fa So Le Te Do

Harmonic Minor Solfege

Do Re Me Fa So Le Ti Do

Melodic Minor Solfege

Do Re Me Fa So La Ti Do

Subtonic

a whole step below tonic (root), 7th scale degree

Parallel

major and minor keys with different key signatures but with the same tonic are called parallel (A Major and A minor)

Scalar Variance

the use of natural, harmonic, and melodic minor within one composition

Artificial/Altered Scales

scales that vary from the key signature and require the use of additional accidentals to create the scale

Labels of Notes in Major Scale

Tonic, Supertonic, Mediant, Subdominant, Dominant, Submediant, Leading Tone, Tonic

Active Tones

scale degress 4, 6, and 7

Resolution Tones

scale degrees 1 and 3 because the active tones resolve to them

Diatonic

within the scale

Pentatonic Scale

have five tones, taking five consecutive pitches from the Circle of Fifths and rearranging the order so they fit within one octave (C-D-E-G-A-C)

Whole-Tone Scale

has seven tones including the octave-each pitch a whole step apart

Diminished Scale (Octatonic Scale)

this scale is distinguished by alternating whole-step with half-step intervals (9 notes including octave)

Blues Scale

7 note scale counting the octave, doesn't have a 2 or 6 scale degree and includes the flatted 5 (C-Eb-F-Gb-Bb-C)

Church (Diatonic) Modes

a scale with a different pattern of whole and half steps from major and minor (Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, Locrian)

Ionian Mode

same as major scale (C-D-E-F-G-A-B-C)

Aeolian Mode

same as the natural minor scale (C-D-Eb-F-G-Ab-Bb-C)

Dorian Mode

natural minor with a raised 6 (C-D-Eb-F-G-A-Bb-C)

Phrygian Mode

natural minor with a lowered 2 (C-Db-Eb-F-G-Ab-Bb-C)

Lydian Mode

major mode with raised 4 (C-D-E-F#-G-A-B-C)

Mixolydian Mode

major with a lowered 7 (C-D-E-F-G-A-Bb-C)

Locrian Mode

used less than other modes, has a diminished tonic triad, minor with a lowered 2 and 5 (C-Db-E-F-Gb-A-B-C)