Day 11: Intervals (Assessment)

Question 1: Fill in the table with the intervals between each part. (excerpt)


Questions 2-4: Identify the intervals.

Question 5: Build the following interval: a minor third down from E.

Question 6: Build the following interval: a diminished fourth up from Ab.

Question 7: Build the following interval: a augmented sixth down from F#.

Question 8: The horn begins with which of the following intervals? (excerpt, 1:24)

A. Minor Sixth
B. Major Seventh
C. Perfect Fifth
D. Major Sixth

Question 9: Attempt to get at least 18 correct on the exercise linked here.


Explanations are included in some answers.

Answer 1:
Answer 2: Augmented fifth. The white-note interval (G—D) is a perfect fifth. The D, however, is sharped, so the interval increases. This means it's now an augmented fifth.
Answer 3: Diminished sixth. Note the clef! The white-note interval (A—F) is a minor sixth. The sharp on the A brings the A, thereby making the interval smaller. So, one below minor is diminished.
Answer 4: Diminished second. The white-note interval (D—E) is a major second. The flat on top makes the interval smaller, and the sharp on bottom also makes the interval smaller. We go from major to minor to diminished.
Answer 5: E—C#. Three down from E is C. E—C (down) is a major third. We make this minor by making the interval smaller, or by raising the lower note.
Answer 6: Ab—Dbb. If you don't know what the generic fourth of the Ab Major scale is (Db), you should at least know the generic fourth of A, which is D. Lower these, and you're back to your original key. We have a perfect fourth (Ab—Db) and we diminish it by lowering the Db to Dbb.
Answer 7: F—Abb. We need to go six down from F#, so our white note interval is F—A (down... this is not a third). A to F is a minor sixth. You could've figured that out by finding the inverted interval, F to A, which is a major third. We need to change this minor sixth to an augmented sixth, meaning we have to expand our interval twice. Because we can't change the F (it was given), we have to lower our A to make the interval bigger. So, our final interval is F—Abb.
Answer 8: D. The previous phrase ends with a 1—3—1. Then, the horn player goes from 5—3 to eventually land on 1. This is a very common progression.