Which scale is shown below?

Question

BlackTom AI · Accepted Answer

The melody shows the pitch collection G–A–B♭–C–D–E♭–F#–G, which is the defining set of G harmonic minor.

1) Relevant concepts:
- Natural minor (Aeolian) on G would be G–A–B♭–C–D–E♭–F–G.
- Harmonic minor raises the 7th scale degree by a half step, so in G minor the F becomes F#.
- The characteristic interval of the harmonic minor is the augmented second between the lowered 6th (E♭) and the raised 7th (F#).

2) Step‑by‑step identification from the staff (bass clef):
- The first note sits on the bottom line of the bass clef: G.
- The next notes ascend stepwise: A (space), B♭ (middle line with a flat accidental), C (space), D (next line), E♭ (space with flat), and then F# (top line with a sharp), resolving to the upper G.
- Reading the accidentals explicitly yields the sequence G, A, B♭, C, D, E♭, F#, G.

3) Intermediate reasoning and intervals:
- Between G→A: whole step; A→B♭: half step; B♭→C: whole; C→D: whole; D→E♭: half; E♭→F#: augmented second (three semitones); F#→G: half. This W–H–W–W–H–aug2–H pattern matches the harmonic minor form.

4) Why this is correct:
- The presence of both B♭ and E♭ indicates the minor key on G (same key signature as B♭ major / G natural minor). The single raised note F# (sharp on the 7th degree) converts the natural minor into the harmonic minor. The augmented second between E♭ and F# is the telltale harmonic‑minor feature.

5) Why the other choices are incorrect:
- B natural minor would center on B and include C#, F#, but not B♭ or E♭; the pitches don’t match.
- B major has five sharps (no B♭ or E♭) and a very different pitch set.
- G major has only one sharp (F#) but would use B natural and E natural (not B♭ and E♭), so it doesn’t match the B♭ and E♭ accidentals shown.

Conclusion: The notes and the raised 7th (F#) confirm this is G harmonic minor, matching the provided answer.

Which scale is shown below? 单项选择题

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