Questions: Scale Degree Names and Functional Roles

Question 1

In C major, a melody ends on the note B, which then resolves up by a half step to C. What scale degree is B, and why does this resolution feel so compelling?

• A. B is the submediant (6̂) — its resolution creates a satisfying return to a neighbor tone
• B. B is the dominant (5̂) — it creates tension that demands resolution to the mediant
• C. B is the leading tone (7̂) — the half-step pull toward the tonic (1̂) is the sharpest expression of harmonic tension in tonal music
• D. B is the supertonic (2̂) — resolving downward by step produces a sense of arrival

Answer: (C)

B is scale degree 7̂, the leading tone. Its defining feature is the half-step interval between it and the tonic (1̂) — in C major, B is only a semitone below C. This half-step creates the strongest possible pull toward resolution. The leading tone is the reason dominant chords built on 5̂ are so harmonically charged: the chord contains 7̂, which wants urgently to resolve to 1̂. No other scale degree has this property.

Question 2

In the key of C major, which scale degree most clearly signals that the key is major rather than minor?

• A. The tonic (1̂), because it establishes the home pitch shared by both modes
• B. The dominant (5̂), which has the same relationship to the tonic in both major and minor
• C. The mediant (3̂), which is a major third above the tonic in major and a minor third above the tonic in minor
• D. The subdominant (4̂), because it is the note most distant from the tonic

Answer: (C)

The mediant (3̂) is the note that distinguishes major from minor. In C major it is E (a major third above C); in C minor it is E♭ (a minor third above C). This single degree colors the emotional character of the entire key — it's what makes C major sound 'bright' and C minor sound 'dark'. The tonic and dominant are essentially the same in both modes; the difference lies in 3̂ (and 6̂ and 7̂ in natural minor).

Question 3

The leading tone (7̂) creates its characteristic pull toward the tonic because it lies a half step below 1̂.

• T. True
• F. False

Answer: True

This is exactly correct. The half-step interval is the smallest distance in Western equal temperament, and it creates a strong sense of melodic gravity. The leading tone seems to 'lean into' the tonic. This is why composers raise 7̂ in minor keys (producing the harmonic minor scale) — the natural minor scale has a whole step between 7̂ and 1̂, which weakens the pull; sharpening 7̂ restores the half step and the strong leading-tone function.

Question 4

Because most seven scale degrees belong to the same key, they are functionally interchangeable — any degree can serve equally well as a point of melodic rest or tension depending on context.

• T. True
• F. False

Answer: False

Scale degrees have characteristic functional tendencies that are not simply context-dependent. The tonic (1̂) is the primary point of rest; the dominant area — especially the leading tone (7̂) — creates the primary tension. These tendencies are consistent across tonal music of the common-practice period. While context can inflect how a degree is heard, 7̂ does not function as freely as 1̂ for melodic closure, and 1̂ does not create the urgency that 7̂ does. The functional hierarchy is real, not arbitrary.

Question 5

Without using the words 'tonic' or 'dominant,' explain why a melody that ends on scale degree 7̂ sounds unfinished, while the same melody ending on scale degree 1̂ sounds complete.

Model answer: Scale degree 7̂ is only a half step below 1̂, creating strong melodic tension — it pulls the ear toward the note just above it. Ending there leaves that pull unresolved, like a question without an answer. Scale degree 1̂ is the gravitational center of the key: all other degrees are defined by their distance and relationship to it, and arriving there satisfies the tension that the other degrees create. A melody that lands on 1̂ has 'come home.'

This question asks students to explain functional tendency without using the label — which tests whether they understand the concept or just memorized the names. The key insight is that 7̂ has a specific directional pull toward 1̂ (the half-step relationship), and 1̂ is the resolution point that the entire key's harmonic structure orbits around. Students who can explain this without the technical terms demonstrate genuine understanding of scale degree function.