Videos about "other" diatonic seventh chords (Chapter 15)

I made a two-part video series for Chapter 15 (part 1, part 2). Please watch these for Tuesday, March 27. We may have a mini-quiz.


Notes:

For ALL diatonic seventh chords

• Have the same function as corresponding triads
• Chordal 7^th must resolve down by step—STRICT
• Chordal 7^th must be prepared
• Common tone—looks like suspensions
• Stepwise motion—looks like PT or NN
• Jump up—looks like appoggiatura
• Write seventh chords complete, ESPECIALLY in inversion (=no doubling)

Leading-tone seventh chord

• Ti-re-fa-la (in major) – ^ø7
• Ti-re-fa-le (in minor or major) – º7
• Stepwise motion
• Tonic prolongation
• Voice leading
• Ti --> do
• Fa --> mi (me)
• La (le) --> SOL
• Re --> Do or mi (me)*

Supertonic seventh chord

• Predominant
• “Do” is chordal seventh
• Combines ii and IV (iiº and iv in minor)
• Quite commonly used

Subdominant seventh chord

• Predominant
• (Major key) Fa-la-do-Mi … IV⁷ (chord quality MM7)
• (Minor key) Fa-le-do-me … iv⁷ (chord quality mm7)
• Scale degree ^3 (mi/me) is chordal seventh
• An alternate harmonization of ^3-^2-^1