LISTENING: W.A. MOZART: Piano Concerto in A Major, K. 448

What is the texture in the opening measures of Mozart’s Piano Concerto in A Major, K. 488?

Question

LISTENING: W.A. MOZART: Piano Concerto in A Major, K. 448

What is the texture in the opening measures of Mozart’s Piano Concerto in A Major, K. 488?

BlackTom AI · Accepted Answer

Concertos of the Classical era typically open with an orchestral tutti that states the main themes before the soloist enters. This establishes the correct identification: the texture in the opening measures is orchestra alone.

1. Relevant knowledge points and concepts
- Texture describes how musical lines and forces are combined (who plays and whether parts are equal or accompanimental).
- In the Classical concerto (Mozart included) there is often a double-exposition or orchestral ritornello: the orchestra presents material first (tutti/orchestra alone), then the soloist enters and either reprises or elaborates those themes.
- “Orchestra alone” means the opening is entirely orchestral without the solo instrument sounding; other textures listed (piano alone, orchestra supporting piano, orchestra and piano equal) imply the piano is present from the start.

2. Step-by-step reasoning
- Listen (or inspect the score) at the very beginning: only orchestral instruments (strings and sometimes winds) sound the primary theme.
- The piano does not play in these opening measures; its entrance comes later after the orchestral exposition.
- Because the opening consists solely of the orchestra presenting thematic material, the texture is best described as “orchestra alone.”

3. Intermediate steps (observations)
- Observation 1: initial measures contain tutti orchestral writing (melody and accompaniment distributed among orchestra).
- Observation 2: no piano figuration or solo line is heard in those measures.
- Observation 3: later, the piano will enter to take or ornament these themes—showing the typical concerto procedure—but that occurs after the orchestral opening.

4. Why the correct answer is correct
- The label “orchestra alone” precisely fits the opening: the full orchestra states the themes before the piano joins. This is a standard Classical concerto opening (tutti/orchestral exposition).

5. Why the other options are incorrect
- “Piano alone”: false because the piano is silent at the opening.
- “Orchestra supporting piano”: false because that implies the piano is playing with orchestral accompaniment from the start; here the orchestra leads.
- “Orchestra and piano on equal footing”: false because the piano has not entered to share thematic material equally in the opening measures.

6. Conclusion
The opening measures feature the orchestra alone (tutti orchestral exposition). This confirms the provided answer: orchestra alone.

LISTENING: W.A. MOZART: Piano Concerto in A Major, K. 448 What is the texture in the opening measures of Mozart’s Piano Concerto in A Major, K. 488? 单项选择题

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