chords of sequence

• tchaikovsky will often define these movements as being between dominants and tonics
• the connection is important
  • two tones of the 7th must be obliquely lead to the tonic
  • 5th of the 7th chord must be led one step down the fundamental of the tonic
    • without this, there is a danger of concealed 5ths
  • only one common tone can be permitted when the seventh chord is in root position without it’s 5th
  • 3rds of 7th chords in an inner voice can be lead downward in contrary motion to the bass
    • only when chords are complete
  • often we will have 3rds of 7ths without resolution so they will stay in the same position
  • chords of sequence can be anywhere so long as they are prepared by a preceding 7th chord with common tones
• two groups of sequence chords
  • major 7th chords
    • 1 and 4
  • minor 7th chords
    • 2,3,6