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🎸AP Music Theory Unit 5 Vocabulary

69 essential vocabulary terms and definitions for Unit 5 – Chord Progressions and Predominant Function

Study Unit 5
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🎸Unit 5 – Chord Progressions and Predominant Function
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🎸Unit 5 – Chord Progressions and Predominant Function

5.1 Adding Predominant Function IV (iv) and ii (ii0) to a Melodic Phrase

TermDefinition
dominantThe fifth scale degree and its associated chord (V), which creates tension and typically resolves to the tonic.
harmonic backgroundThe fundamental harmonic structure of a phrase, typically following the tonic-predominant-dominant-tonic progression.
harmonic foregroundThe surface-level harmonic elaboration of a phrase in which chords are ordered in various combinations while maintaining underlying functional harmony.
harmonic functionThe role a chord plays in a harmonic progression, such as tonic, predominant, or dominant function.
harmonic progressionA sequence of chords that move from one harmony to another, creating the harmonic structure of a musical passage.
predominantA harmonic function that typically occurs between the tonic and dominant, preparing for the resolution to the dominant.
subdominantThe fourth scale degree and its associated chord (IV or iv), which functions as a predominant harmony leading toward the dominant or tonic.
supertonicThe second scale degree, located one step above the tonic.
tonicThe first scale degree and the primary harmonic center of a key, providing the sense of resolution and stability.

5.2 The vi (VI) Chord

TermDefinition
deceptive progressionA harmonic progression where the dominant chord is followed by a chord other than the expected tonic, typically the submediant chord.
dominant chordThe fifth scale degree chord (V) that naturally resolves to the tonic, creating a strong sense of harmonic closure.
harmonic functionThe role a chord plays in a harmonic progression, such as tonic, predominant, or dominant function.
harmonic progressionA sequence of chords that move from one harmony to another, creating the harmonic structure of a musical passage.
predominant chordA chord that typically precedes the dominant chord and prepares harmonic movement toward resolution.
submediant chordThe chord built on the sixth scale degree, commonly used in deceptive progressions to replace the expected tonic resolution.
tonic chordThe chord built on the first scale degree, which establishes the tonal center and provides harmonic stability.
tonic substituteA chord that can replace the tonic chord and provide a sense of resolution or stability, such as the vi chord.
vi chordThe chord built on the sixth scale degree, typically a minor chord in major keys and a major chord in minor keys.

5.3 Predominant Seventh Chords

TermDefinition
cadential ⁶₄ chordA second-inversion chord that typically appears before a V-I cadence, functioning as an acceptable harmonic pattern in voice leading.
harmonic functionThe role a chord plays in a harmonic progression, such as tonic, predominant, or dominant function.
predominant seventh chordsSeventh chords built on the fourth scale degree (or ii) that function as predominant harmony, preparing the dominant chord before a cadence.
predominant triadsThree-note chords (typically IV or ii) that function to prepare and lead toward the dominant chord in a harmonic progression.
seventh chordsChords built on a triad by adding a note a seventh above the root, creating four-note harmonies with specific qualities.
voice leadingThe technique of moving individual melodic lines (voices) in a musical composition, including considerations for smooth transitions and proper resolution of chords.

5.4 The iii (III) Chord

TermDefinition
harmonic functionThe role a chord plays in a harmonic progression, such as tonic, predominant, or dominant function.
harmonic progressionA sequence of chords that move from one harmony to another, creating the harmonic structure of a musical passage.
mediant triadA triad built on the third scale degree (iii in minor keys, III in major keys), which functions as a secondary harmony in tonal music.
relative major keyThe major key that shares the same key signature as a given minor key, located a minor third above it.

5.5 Cadences and Predominant Function

TermDefinition
authentic cadenceA cadence that moves from a dominant chord (V) to a tonic chord (I or i), creating a sense of strong harmonic resolution.
cadenceA harmonic progression that marks the end of a phrase and provides punctuation in musical flow.
deceptive cadenceA cadence that avoids the expected V-I resolution of an authentic cadence by substituting a non-tonic chord for the tonic.
dominantThe fifth scale degree and its associated chord (V), which creates tension and typically resolves to the tonic.
Phrygian half cadenceA cadence that moves from a subdominant chord in first inversion (iv⁶) to a dominant chord (V), used in minor keys only.
plagal cadenceA cadence that moves from a subdominant chord (IV or iv) to a tonic chord (I or i), also known as an 'Amen cadence.'
predominant functionA harmonic function that typically occurs between the tonic and dominant, preparing the resolution to the tonic through subdominant chords.
subdominantThe fourth scale degree and its associated chord (IV or iv), which functions as a predominant harmony leading toward the dominant or tonic.
tonicThe first scale degree and the primary harmonic center of a key, providing the sense of resolution and stability.

5.6 Cadential 6/4 Chords

TermDefinition
⁶₄ chordA second-inversion triad where the fifth of the chord appears in the bass, notated with the figured bass symbols 6 and 4.
arpeggiated ⁶₄A ⁶₄ chord that results from triad arpeggiation in the bass, where the bass arpeggiates a complete triad or oscillates between the root and fifth while upper voices remain static.
bassThe lowest voice part in SATB four-voice texture, typically the lowest musical line.
cadenceA harmonic progression that marks the end of a phrase and provides punctuation in musical flow.
cadential ⁶₄A sixth-four chord that occurs on a strong beat, typically preceding a V-I cadence in 18th-century harmonic practice.
cadential ⁶₄ chordA second-inversion chord that typically appears before a V-I cadence, functioning as an acceptable harmonic pattern in voice leading.
dominantThe fifth scale degree and its associated chord (V), which creates tension and typically resolves to the tonic.
figured bassA notational system using Arabic numerals below a bass note to indicate the intervals and pitches of the chord to be played above that bass note.
neighboring ⁶₄A ⁶₄ chord that occurs when the third and fifth of a root-position triad are embellished by their upper neighbor tones while the bass remains stationary, typically appearing on a weak beat.
passing ⁶₄A ⁶₄ chord that harmonizes a passing tone in the bass, typically occurring on a weak beat as part of a three-note ascending or descending scale fragment.
pedal ⁶₄A ⁶₄ chord in which the bass note remains stationary while upper voices move, often used interchangeably with neighboring ⁶₄ when describing embellished triads.
resolutionThe movement of a chord tone, typically by step, to another chord tone, often from a dissonant interval to a consonant one.
second-inversion triadA triad with the fifth of the chord in the bass position, creating a ⁶₄ figured bass notation.
tonic triadA chord built on the first scale degree, serving as the primary harmonic center and point of rest in a key.
voice leadingThe technique of moving individual melodic lines (voices) in a musical composition, including considerations for smooth transitions and proper resolution of chords.

5.7 Additional 6/4 chords

TermDefinition
arpeggiated ⁶₄A ⁶₄ chord that results from triad arpeggiation in the bass, where the bass arpeggiates a complete triad or oscillates between the root and fifth while upper voices remain static.
bass passing toneA non-harmonic tone in the bass that moves by step between two chord tones, harmonized by a passing ⁶₄ chord.
cadential ⁶₄A sixth-four chord that occurs on a strong beat, typically preceding a V-I cadence in 18th-century harmonic practice.
chord successionThe progression from one chord to another in a harmonic sequence.
diatonic sequenceA harmonic progression that uses chords built on consecutive scale degrees within a key.
first-inversion chordA chord with its third as the lowest note, notated with a ⁶ symbol.
neighboring ⁶₄A ⁶₄ chord that occurs when the third and fifth of a root-position triad are embellished by their upper neighbor tones while the bass remains stationary, typically appearing on a weak beat.
neighboring ⁶₄ chordA second-inversion chord that functions as a passing or embellishing chord, typically supported by a pedal tone in the bass.
parallel motionMovement of two voices in the same direction by the same melodic interval.
passing ⁶₄A ⁶₄ chord that harmonizes a passing tone in the bass, typically occurring on a weak beat as part of a three-note ascending or descending scale fragment.
passing ⁶₄ chordA second-inversion chord that connects two root-position or first-inversion chords in stepwise bass motion.
pedal ⁶₄A ⁶₄ chord in which the bass note remains stationary while upper voices move, often used interchangeably with neighboring ⁶₄ when describing embellished triads.
root-position triadA triad with its root as the lowest note, providing the fundamental harmonic foundation.
stepwise motionMovement in a melodic line by adjacent scale degrees, either ascending or descending.
triad arpeggiationThe breaking up of a triad into individual notes played in succession, typically in the bass of an arpeggiated ⁶₄ chord.
upper neighbor toneA non-harmonic tone that is one scale degree above a chord tone and returns to that chord tone.
voice leadingThe technique of moving individual melodic lines (voices) in a musical composition, including considerations for smooth transitions and proper resolution of chords.