Piano Sonata No. 21 in C major, Op. 53 "Waldstein"
E945346
Piano Sonata No. 21 in C major, Op. 53 "Waldstein" is one of Ludwig van Beethoven’s most celebrated and virtuosic piano sonatas, noted for its innovative structure, technical demands, and expansive, heroic character.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Piano Sonata No. 21 in C major, Op. 53 "Waldstein" canonical | 5 |
| Piano Sonata No. 21 in C major, Op. 53 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11753116 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Piano Sonata No. 21 in C major, Op. 53 "Waldstein" Context triple: [Beethoven piano sonatas, hasPart, Piano Sonata No. 21 in C major, Op. 53 "Waldstein"]
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A.
Piano Sonata No. 23 in F minor, Op. 57 "Appassionata"
Piano Sonata No. 23 in F minor, Op. 57 "Appassionata" is one of Beethoven’s most celebrated and emotionally intense piano sonatas, renowned for its dramatic contrasts, technical demands, and profound expressive depth.
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B.
Piano Sonata No. 28 in A major, Op. 101
Piano Sonata No. 28 in A major, Op. 101 is one of Ludwig van Beethoven’s late piano sonatas, noted for its lyrical intimacy, structural innovation, and role in heralding his final stylistic period.
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C.
Piano Sonata No. 2 in B-flat minor, Op. 36
Piano Sonata No. 2 in B-flat minor, Op. 36 is a large-scale, virtuosic and emotionally intense piano work by Sergei Rachmaninoff, noted for its sweeping Romantic lyricism and technical demands.
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D.
Piano Sonata No. 17 in D minor, Op. 31 No. 2 "Tempest"
Piano Sonata No. 17 in D minor, Op. 31 No. 2 "Tempest" is one of Ludwig van Beethoven’s most dramatic and frequently performed piano sonatas, renowned for its turbulent character and emotional intensity.
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E.
Piano Sonata No. 13 in E-flat major, Op. 27 No. 1 "Quasi una fantasia"
Piano Sonata No. 13 in E-flat major, Op. 27 No. 1 "Quasi una fantasia" is a four-movement piano sonata by Ludwig van Beethoven noted for its unconventional, fantasia-like structure and lyrical character.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Piano Sonata No. 21 in C major, Op. 53 "Waldstein" Target entity description: Piano Sonata No. 21 in C major, Op. 53 "Waldstein" is one of Ludwig van Beethoven’s most celebrated and virtuosic piano sonatas, noted for its innovative structure, technical demands, and expansive, heroic character.
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A.
Piano Sonata No. 23 in F minor, Op. 57 "Appassionata"
Piano Sonata No. 23 in F minor, Op. 57 "Appassionata" is one of Beethoven’s most celebrated and emotionally intense piano sonatas, renowned for its dramatic contrasts, technical demands, and profound expressive depth.
-
B.
Piano Sonata No. 28 in A major, Op. 101
Piano Sonata No. 28 in A major, Op. 101 is one of Ludwig van Beethoven’s late piano sonatas, noted for its lyrical intimacy, structural innovation, and role in heralding his final stylistic period.
-
C.
Piano Sonata No. 2 in B-flat minor, Op. 36
Piano Sonata No. 2 in B-flat minor, Op. 36 is a large-scale, virtuosic and emotionally intense piano work by Sergei Rachmaninoff, noted for its sweeping Romantic lyricism and technical demands.
-
D.
Piano Sonata No. 17 in D minor, Op. 31 No. 2 "Tempest"
Piano Sonata No. 17 in D minor, Op. 31 No. 2 "Tempest" is one of Ludwig van Beethoven’s most dramatic and frequently performed piano sonatas, renowned for its turbulent character and emotional intensity.
-
E.
Piano Sonata No. 13 in E-flat major, Op. 27 No. 1 "Quasi una fantasia"
Piano Sonata No. 13 in E-flat major, Op. 27 No. 1 "Quasi una fantasia" is a four-movement piano sonata by Ludwig van Beethoven noted for its unconventional, fantasia-like structure and lyrical character.
- F. None of above. chosen
Statements (47)
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Piano Sonata No. 21 in C major, Op. 53 "Waldstein" Description of subject: Piano Sonata No. 21 in C major, Op. 53 "Waldstein" is one of Ludwig van Beethoven’s most celebrated and virtuosic piano sonatas, noted for its innovative structure, technical demands, and expansive, heroic character.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Piano Sonata No. 21 in C major, Op. 53 "Waldstein"
Piano Sonata No. 22 in F major, Op. 54
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precededBy
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Piano Sonata No. 21 in C major, Op. 53 "Waldstein"
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