⏱️ September 23, 2020
Harmonic flowchart in Major Key: iii as tonic prolongation. Image from Robert Hutchinson: http://musictheory.pugetsound.edu/mt21c/HarmonicFunction.htmlHarmonic flowchart in Minor Keys: III as tonic prolongation.
Image from Robert Hutchinson: http://musictheory.pugetsound.edu/mt21c/HarmonicFunction.htmlA name is assigned to each scale degree. Tonic, Supertonic, Mediant, Subdominant, Dominant, Submediant, and Leading Tone. The Mediant degree refers to degree 3 of any Major Scale.
The iii or III chord serves as a prolongation of the tonic. Some textbooks call this an expansion of the tonic as well, especially if it appears at the beginning of a phrase (I-iii or i-III.)
ALWAYS check yourself when analyzing chords and you find a iii (in major.) Think about it twice! The only place where you find iii is in a I-iii-IV progression at the beginning of a phrase.
We are using Roman Numerals to identify and analyze music. On Unit 3 we went over the harmonic functions and names for each harmony and each scale degree
A name is assigned to each scale degree. Tonic, Supertonic, Mediant, Subdominant, Dominant, Submediant, and Leading Tone. The Mediant degree refers to degree 3 of any Major Scale.
The mediant triad or iii (III in Major) is rarely used in harmonic progressions of 18th-century style, also called common practice. The mediant triad in a minor key-iii-appears more often in its role as representing the relative major key
Check for understanding:
Can you name each scale degree by memory?
What chords can you use to extend the tonic function?
ap music theory
🎵 Unit 1: Music Fundamentals I: Pitch, Major Scales and Key Signatures, Rhythm, Meter, and Expressive Elements
1.1Pitch and Pitch Notation 🎼
🎶 Unit 2: Music Fundamentals II: Minor Scales and Key Signatures, Melody, Timbre, and Texture
2.1Minor Scales: Natural, Harmonic, and Melodic
2.2Relative Keys: Determining Relative Minor Key and Notating Key Signatures
2.3Key Relationships: Parallel, Closely Related, and Distantly Related Keys
2.4Other Scales: Chromatic, Whole-Tone, and Pentatonic
🎻 Unit 3: Music Fundamentals III: Triads and Seventh Chords
3.1Triad and Chord Qualities (M, m, d, A)
3.3Chord Inversions and Figures: Introduction to Figured Bass
🎹 Unit 4: Harmony and Voice Leading I: Chord Function, Cadence, and Phrase
4.3Harmonic Progression, Functional Harmony, and Cadences
4.4Voice Leading with Seventh Chords
🎸 Unit 5: Harmony and Voice Leading II: Chord Progressions and Predominant Function
5.1Adding Predominant Function IV (iv) and ii (ii0) to a Melodic Phrase
📝 Exam Skills
AP Music Theory Multiple Choice Help (MCQ)
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