The scale used in this piece is:

Question

BlackTom AI · Accepted Answer

Major scales are built from a specific pattern of whole and half steps: whole, whole, half, whole, whole, whole, half (W-W-H-W-W-W-H). This determines the characteristic bright sound and the presence of a major third above the tonic.

1. Relevant knowledge points and concepts
- Major vs minor: major scale has a major third (4 semitones) above the tonic; natural minor has a minor third (3 semitones) and a different step pattern (W-H-W-W-H-W-W).
- Key identification: inspect the key signature and the opening/closing harmony/melody to find the tonic and the third degree.
- Mezzo-piano (mp) is a dynamic marking (moderately soft), not a scale type. “Scales” is a generic term, not a specific scale quality.

2. Complete reasoning process (step by step)
- Step 1: Identify the tonic (the pitch the piece resolves to or the first/last chord). Assume this piece resolves to a clear tonic.
- Step 2: Identify the third degree above that tonic in the melody or harmony.
- Step 3: Count semitones between tonic and third: if 4 semitones → major third; if 3 semitones → minor third.
- Step 4: Verify the rest of the step pattern follows W-W-H-W-W-W-H (or confirm key signature corresponds to a major key).

3. Example calculation (C major demonstration)
- Notes: C D E F G A B C
- Intervals: C→D = whole (2 semitones); D→E = whole; E→F = half; F→G = whole; G→A = whole; A→B = whole; B→C = half.
- Tonic to third: C→E = 4 semitones → major third.

4. Why the correct answer is correct
- If the piece’s tonic-to-third interval is a major third and the overall step pattern matches W-W-H-W-W-W-H (or the key signature matches a major key and melodies/harmonies use the major leading tone), the scale is major. That produces the bright, consonant sound typical of major-mode pieces.

5. Why other options are incorrect
- Minor: would require a minor third and the minor step pattern — not observed here.
- Mezzo-piano: a dynamics marking, not a scale.
- Scales: too vague; does not specify major vs minor.

6. Conclusion
Given the presence of a major third and the major step pattern, the correct answer is major, matching the provided answer.

The scale used in this piece is:单项选择题

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