Share page | Visit Us On FB |
122 |
OREM'S HAEMONY BOOK |
|||
free to ascend or descend, but it frequently descends:
When the Root is in the Bass, it
ascends a Fourth or descends a Fifth :
Finally, the whole Dominant Seventh Chord will move towards the Tonic Chord in this manner:
|
||||
It will be observed that, in the Tonic Chord, the Fifth of the Chord (G) is absent. The reason is obvious: there is no Member to lead to it. The Fifth of any Common Chord may be omitted at any time.
This leading of the Dominant Seventh Chord towards the Tonic Chord is known as a Progression.
Here is a chance for some fine ear training. The student will hear this Progression about as often as he will hear anything in Music. Let him learn to recognize it at once.
It will have been noted that all Chords are built up in Thirds. Consequently, the adding of the Seventh is but another step in the ladder. So far we have had Root, Third, Fifth (each a Third apart); now we have the Seventh in addition. All Chords are built up in this manner. |
||||
|
||||
The Dominant Seventh Chord, with its Root in the Bass, may be written in three Positions, having its Seventh, its Fifth, or its Third at the top, thus: |
|
|||