The second inversion is called the chord of the third, fourth and sixth (four-three chord). It is figured by the Roman numeral below the bass and the Arabic figures (643) or simply (43) over the bass. Example:—

The third inversion is called the chord of the second and fourth. It is figured by the Roman numeral below the bass and the Arabic figures (642), (42), or simply (2) over the bass. Example:—

The study of chord progression, altered chords, melody writing, passing tones, etc., belongs properly to the study of harmony and counterpoint which is not the subject of this volume.

EXERCISES.

ORAL AND WRITTEN.

1. What is an interval?

2. How are intervals named?

3. What are the normal intervals?

4. Qualify the derived intervals; from what is each derived?

5. Notate all the normal intervals and all the derivative intervals.

6. Name all the following intervals:—