6? 1 to 8?

6. Thirds are of two kinds: major (larger) thirds embrace two
whole-steps; minor (smaller) thirds embrace a step and a half.
What kind of a third is 1-3 in the diatonic scale? 2-4? 3-5? 6-8?

7. What do we mean by the term, Fundamental of a chord? What is
added to it to complete the common chord?

8. What absolute pitches comprise the common chord of C? What
kind of interval between the first two members? What between the
first and last? What between the second and last?

9. What tones would you use if told to strike the common chord of
C in four-part, close harmony, using the fundamental for the
highest tone?

10. How many keys (white and black) are there between the
fundamental and the third? How many between the third and the
fifth? How many between the fundamental and the fifth when the
fifth is played above the fundamental?

11. How many keys (white and black) are there between two keys
comprising a perfect fourth?

12. (Most important of all.) What keys of the piano keyboard
comprise the common chord founded upon G as the fundamental? Upon
F? Upon F♯? Upon G♯? Upon B♭? Upon D♭? Upon E♭? Upon D? Upon E?
Upon A? Upon B?