Chapter 6 Review

Chapter 6 Review

1. Review Root Position Part Writing (Chapter 6)
   1. Four part texture
      1. All Members of the triad are usually present.  The final I chord is sometimes incomplete, consisting of a 3^rd and tripled root.
      2. The root is usually doubled.  The leading tone (7^th scale degree) is almost never doubled.
   2. 3 Part texture
      1. The 5^th of the triad is often omitted.  The final I chord may consist only of a tripled root.
      2. An incomplete triad will usually have the root doubled.  The leading tone (7) is almost never doubled.
2. Review Root Position Part writing with roots a 4^th (5^th) apart
   1. Four Part textures
      1. Method 1 – Keep the same voice the tone that is common to both chords, the remaining two upper parts move by step in the same direction.
      2. Method 2 – All Three upper parts in the same direction, with NO LEAPS LARGER THAN A 3^RD.
      3. Method 3 – Used for changing between close and open structures.  Keep  the same voice the tone that is common to both chords,  (3^rd of the first chord leaps to the 3^rd of the second chord)  The remaining voices move by step.  (Contrary Motion)
   2. Three Part Textures
      1. Each chord must contain at least a root and a 3^rd.  REMEMBER Parallelism and spacing rules.  Aim for smooth voice leading instead of complete chords.
3. Root Position Part Writing with Roots a 3^rd (6^th) Apart
   1. Four Part Textures
      1. If the first two root position triads have a doubled root only one of the upper voices will need to move.
      2. The two upper voices that have tones in common with the second chord remain stationary.
      3. The remaining voices move by step.
         1. The stepwise motion will be upward for roots a descending 3^rd apart and
         2. downward for roots an ascending 3^rd apart.
   2. Three Part Textures
      1. When there is an ascending root movement you should not omit the 5^th of the second chord because the listener might assume that the music has progressed only from a root position triad to an inverted form of the same triad.

Do SELF TEST 6-3

1. Root Position Part Writing with Roots a 2^nd Apart
   1. Four Part Textures
      1. If the Bass Moves up by step, the upper voices move down to the next chord tone
      2. If the Bass moves down by step, the upper voices move up to the next chord tone