Lesson 10

 Lesson 10: 7th Chords, Part 2


Lecture Notes:

  • You will always find the root note of the 7th chord if you find the higher note of the 2nd interval (dissonance), only if the chord is not in "root position".
  • The only figured bass that has a 7 in it is the root position. The rest of the inversions would have a 6 at the top followed by the other intervals of the bass at the bottom, or if simplified would have a 4 at the top for only the 2nd and 3rd inversions.
Image from:
https://music.stackexchange.com/questions/26837/chord-symbols-for-inversions-of-7th-chords

  • In a lead sheet, you're always going to have a 7 above the chord no matter what type of Seventh Chord it is.
Image from:
https://www.harpspectrum.org/pedal/pool_short.shtml

  • In lead sheets, another name for a half-diminished chord (ø) is a minor 7th flat 5 (m7♭5)

Image from:
https://hellomusictheory.com/learn/half-diminished-chords/



Inversions of 7th Chords
  • The Root position includes four different notes creating three stacked 3rds and has the root note as the bass note.
  • The 1st Inversion has the 3rd as the bass note.
  • The 2nd Inversion has the 5th as the bass note.
  • The 3rd Inversion has the 7th as the bass note.
Image from:
https://2012.musictheory.net/lessons/47






Here's a YouTube video from the YouTuber: "5 minute music theory". In this video, he teaches you a quick video on the 4 possible inversions of 7th chords (root position, 1st inversion, 2nd inversion, 3rd inversion) and how they would appear in theory.





Here's a YouTube video from MusicFraser. In this video, he dives deeply into the dominant 7th chord and its 4 different inversions. He also shows how the inversions of the chord appear on the staff and on the digital keyboard.



In this video, I am playing Arpeggiated 7th Chords using the piano. The 3 root notes that were used are A♭, E♭, and B♭. The type of 7th Chords that were displayed is Major 7th, Minor 7th, Half-Diminished 7th, and Fully Diminished 7th.



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