Lesson 7

 October 28, 2022

Lesson 7:

Lecture notes:

  • Triad qualities can be major, minor, diminished, or augmented
  • In a diatonic scale the quality of a naturally occurring chord is defined by the root note's scale degree. (e.g.: in a major scale only the 1st, 4th, and 5th scale degrees are defined by a major quality. The 2nd, 3rd, and 6th are defined as being minor. Lastly the 7th is recognized by its diminished quality.
  • Compositions of various chords:
    • Major: Root - Major 3rd - Perfect 5th
    • Minor: Root - Minor 3rd - Perfect 5th
    • Diminished: Root - Minor 3rd - Diminished 5th
    • Augmented: Root - Major 3rd - Augmented 5th
  • A major scale can be written as I - ii - iii - IV - V - vi - vii dim when looking at the scale degrees. (Upper case - Major quality, Lowercase - Minor, Diminished)



This picture acts as a wonderful visual aid in understanding the different quality possibilities for various triads. In doing so it clears up any misunderstandings that may arrive when reading.



This diagram is helpful to us because it displays the chord qualities of a major scale as it relates to it corresponding roman numeral (scale degree).




This video helps to simplify chord qualities by showing us numerous methods for understanding/ memorizing the different aspects that make up these triads.

This video goes a little deeper, in that it shows us how chords can differ from their root position yet still be identified under that chord name. The only difference is that it must be spelt as an inversion


This is me playing the diatonic major scales and their relative minors (Bb major/ G minor, D major/ B minor

Understanding Triad Inversions (for my Audio 101 class

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