Prelude in G-sharp minor, BWV 887 (Book II, enharmonic key)
E1045871
The Prelude in G-sharp minor, BWV 887, is a keyboard piece by Johann Sebastian Bach from the second book of The Well-Tempered Clavier, notable for its expressive chromaticism and intricate contrapuntal writing.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Prelude in G-sharp minor, BWV 887 (Book II, enharmonic key) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13514690 — 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: Prelude in G-sharp minor, BWV 887 (Book II, enharmonic key) Context triple: [Prelude in A-flat major, BWV 862, hasCounterpart, Prelude in G-sharp minor, BWV 887 (Book II, enharmonic key)]
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A.
Prelude in G minor, BWV 860
Prelude in G minor, BWV 860 is a keyboard piece by Johann Sebastian Bach from The Well-Tempered Clavier, Book I, known for its expressive, flowing figuration and frequent pairing with its accompanying fugue.
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B.
Prelude in C-sharp minor, BWV 849
Prelude in C-sharp minor, BWV 849 is a keyboard prelude by Johann Sebastian Bach from the first book of The Well-Tempered Clavier, notable for its expressive chromaticism and contrapuntal texture.
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C.
Prelude in G minor, BWV 861
Prelude in G minor, BWV 861 is a keyboard prelude by Johann Sebastian Bach, notable for its expressive minor-key character and contrapuntal writing.
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D.
Prelude in C-sharp major, BWV 848
Prelude in C-sharp major, BWV 848 is a keyboard prelude by Johann Sebastian Bach, notable for its flowing broken-chord texture and its role in exploring well-tempered tuning.
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E.
Prelude in C minor, BWV 847
Prelude in C minor, BWV 847 is a fast, motoric keyboard prelude by Johann Sebastian Bach, renowned for its driving sixteenth-note patterns and often paired with its accompanying fugue in The Well-Tempered Clavier.
- 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: Prelude in G-sharp minor, BWV 887 (Book II, enharmonic key) Target entity description: The Prelude in G-sharp minor, BWV 887, is a keyboard piece by Johann Sebastian Bach from the second book of The Well-Tempered Clavier, notable for its expressive chromaticism and intricate contrapuntal writing.
-
A.
Prelude in G minor, BWV 860
Prelude in G minor, BWV 860 is a keyboard piece by Johann Sebastian Bach from The Well-Tempered Clavier, Book I, known for its expressive, flowing figuration and frequent pairing with its accompanying fugue.
-
B.
Prelude in C-sharp minor, BWV 849
Prelude in C-sharp minor, BWV 849 is a keyboard prelude by Johann Sebastian Bach from the first book of The Well-Tempered Clavier, notable for its expressive chromaticism and contrapuntal texture.
-
C.
Prelude in G minor, BWV 861
Prelude in G minor, BWV 861 is a keyboard prelude by Johann Sebastian Bach, notable for its expressive minor-key character and contrapuntal writing.
-
D.
Prelude in C-sharp major, BWV 848
Prelude in C-sharp major, BWV 848 is a keyboard prelude by Johann Sebastian Bach, notable for its flowing broken-chord texture and its role in exploring well-tempered tuning.
-
E.
Prelude in C minor, BWV 847
Prelude in C minor, BWV 847 is a fast, motoric keyboard prelude by Johann Sebastian Bach, renowned for its driving sixteenth-note patterns and often paired with its accompanying fugue in The Well-Tempered Clavier.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Baroque composition
ⓘ
keyboard composition ⓘ prelude ⓘ |
| associatedComposerLifePeriod | Leipzig period of Johann Sebastian Bach ⓘ |
| associatedWork | Fugue in G-sharp minor, BWV 887 ⓘ |
| bookNumber | II ⓘ |
| BWVNumber | BWV 887 ⓘ |
| catalogue |
Bach-Werke-Verzeichnis
ⓘ
linked to:
BWV (Bach-Werke-Verzeichnis)
|
| collection | The Well-Tempered Clavier ⓘ |
| composer | Johann Sebastian Bach ⓘ |
| composerNationality | German ⓘ |
| cyclePosition | paired with Fugue in G-sharp minor, BWV 887 ⓘ |
| educationalUse |
keyboard pedagogy
ⓘ
study of Baroque counterpoint ⓘ study of chromatic harmony ⓘ |
| enharmonicKey | A-flat minor ⓘ |
| feature |
continuous figuration
ⓘ
expressive chromaticism ⓘ intricate contrapuntal writing ⓘ modulations to distant keys ⓘ ornamented melodic lines ⓘ sequential harmonic progressions ⓘ |
| genre | keyboard music ⓘ |
| hasKeySignature | five sharps ⓘ |
| hasMovementType | prelude ⓘ |
| hasOpusStructure | paired with a fugue in the same key ⓘ |
| historicalSignificance | part of Bach’s exploration of all major and minor keys ⓘ |
| intendedInstrument |
clavichord
ⓘ
harpsichord ⓘ |
| key | G-sharp minor ⓘ |
| languageOfTitle | Latin ⓘ |
| mode | minor ⓘ |
| notation | staff notation ⓘ |
| partOf |
The Well-Tempered Clavier, Book II
ⓘ
linked to:
The Well-Tempered Clavier
|
| performancePractice | Baroque ornamentation conventions ⓘ |
| period |
Baroque era
ⓘ
linked to:
Baroque
|
| relatedWorkCollection |
Book II of The Well-Tempered Clavier
ⓘ
linked to:
The Well-Tempered Clavier
|
| style | German Baroque ⓘ |
| texture | contrapuntal ⓘ |
| title | Praeambulum in gis-moll, BWV 887 ⓘ |
| tonalCenter | G-sharp ⓘ |
| tonalSystem | well-tempered tuning ⓘ |
| tuningContext | well-tempered keyboard instruments ⓘ |
| typicalPerformanceMedium | solo keyboard ⓘ |
| workSeries | prelude and fugue pairs in all 24 keys ⓘ |
| WTCNumbering | No. 18 in Book II ⓘ |
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: Prelude in G-sharp minor, BWV 887 (Book II, enharmonic key) Description of subject: The Prelude in G-sharp minor, BWV 887, is a keyboard piece by Johann Sebastian Bach from the second book of The Well-Tempered Clavier, notable for its expressive chromaticism and intricate contrapuntal writing.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
Prelude in A-flat major, BWV 862
→
hasCounterpart
→
Prelude in G-sharp minor, BWV 887 (Book II, enharmonic key)
ⓘ