String Quartet No. 16 in F major, Op. 135
E1006602
String Quartet No. 16 in F major, Op. 135 is Ludwig van Beethoven’s final string quartet, noted for its concise form, introspective character, and the enigmatic “Muss es sein?” (“Must it be?”) motif in its last movement.
All labels observed (1)
| Label | Occurrences |
|---|---|
| String Quartet No. 16 in F major, Op. 135 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T12012360 — 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: String Quartet No. 16 in F major, Op. 135 Context triple: [Beethoven string quartets, includes, String Quartet No. 16 in F major, Op. 135]
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A.
String Quartet No. 15 in A minor, Op. 132
String Quartet No. 15 in A minor, Op. 132 is one of Ludwig van Beethoven’s late string quartets, renowned for its profound emotional depth and innovative structure.
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B.
String Quartet No. 13 in B-flat major, Op. 130
String Quartet No. 13 in B-flat major, Op. 130 is one of Beethoven’s late string quartets, renowned for its innovative structure, emotional depth, and originally including the monumental "Grosse Fuge" as its final movement.
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C.
String Quartet No. 4 in A major, Op. 13
String Quartet No. 4 in A major, Op. 13 is a Romantic-era chamber work for two violins, viola, and cello composed by the renowned 19th-century violinist and composer Joseph Joachim.
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D.
String Quartet No. 12 in E-flat major, Op. 127
String Quartet No. 12 in E-flat major, Op. 127 is one of Ludwig van Beethoven’s late string quartets, renowned for its structural innovation, emotional depth, and pivotal role in the development of chamber music.
-
E.
String Quartet No. 4 in C minor, Op. 18 No. 4
String Quartet No. 4 in C minor, Op. 18 No. 4 is an early chamber work by Ludwig van Beethoven, notable for its dramatic intensity and classical yet forward-looking style.
- 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: String Quartet No. 16 in F major, Op. 135 Target entity description: String Quartet No. 16 in F major, Op. 135 is Ludwig van Beethoven’s final string quartet, noted for its concise form, introspective character, and the enigmatic “Muss es sein?” (“Must it be?”) motif in its last movement.
-
A.
String Quartet No. 15 in A minor, Op. 132
String Quartet No. 15 in A minor, Op. 132 is one of Ludwig van Beethoven’s late string quartets, renowned for its profound emotional depth and innovative structure.
-
B.
String Quartet No. 13 in B-flat major, Op. 130
String Quartet No. 13 in B-flat major, Op. 130 is one of Beethoven’s late string quartets, renowned for its innovative structure, emotional depth, and originally including the monumental "Grosse Fuge" as its final movement.
-
C.
String Quartet No. 4 in A major, Op. 13
String Quartet No. 4 in A major, Op. 13 is a Romantic-era chamber work for two violins, viola, and cello composed by the renowned 19th-century violinist and composer Joseph Joachim.
-
D.
String Quartet No. 12 in E-flat major, Op. 127
String Quartet No. 12 in E-flat major, Op. 127 is one of Ludwig van Beethoven’s late string quartets, renowned for its structural innovation, emotional depth, and pivotal role in the development of chamber music.
-
E.
String Quartet No. 4 in C minor, Op. 18 No. 4
String Quartet No. 4 in C minor, Op. 18 No. 4 is an early chamber work by Ludwig van Beethoven, notable for its dramatic intensity and classical yet forward-looking style.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
chamber music composition
ⓘ
string quartet ⓘ |
| approximateCompositionYear | 1826 ⓘ |
| approximateDuration | 22–25 minutes ⓘ |
| associatedLanguage | German ⓘ |
| associatedQuestion | “Must it be?” ⓘ |
| belongsToCycle | Beethoven string quartets NERFINISHED ⓘ |
| belongsToSubgroup | Beethoven late string quartets NERFINISHED ⓘ |
| catalogueNumber | Op. 135 NERFINISHED ⓘ |
| composer | Ludwig van Beethoven ⓘ |
| containsMotif |
“Muss es sein?”
NERFINISHED
ⓘ
“Must it be?” ⓘ |
| followsWork |
Große Fuge, Op. 133
NERFINISHED
ⓘ
String Quartet No. 15 in A minor, Op. 132 NERFINISHED ⓘ |
| genre |
classical music
ⓘ
string quartet ⓘ |
| hasForm | four-movement classical cycle ⓘ |
| hasNickname | “Muss es sein?” quartet NERFINISHED ⓘ |
| historicalSignificance | Beethoven’s last completed major work for chamber ensemble ⓘ |
| instrumentation |
cello
ⓘ
two violins ⓘ viola ⓘ |
| isAmong | Beethoven’s late string quartets NERFINISHED ⓘ |
| isFinalWorkInCategory | Beethoven’s last string quartet NERFINISHED ⓘ |
| key | F major ⓘ |
| languageOfTitle | German ⓘ |
| lastMovementFeature | enigmatic “Muss es sein?” motif ⓘ |
| movement |
I. Allegretto
ⓘ
II. Vivace ⓘ III. Lento assai, cantante e tranquillo ⓘ IV. Grave, ma non troppo tratto – Allegro ⓘ |
| movementCount | 4 ⓘ |
| notedFor |
concise form
ⓘ
introspective character ⓘ philosophical character ⓘ use of the motif “Muss es sein?” ⓘ |
| numberInSeries | 16 ⓘ |
| opusNumber | Op. 135 ⓘ |
| period | Late Beethoven ⓘ |
| placeInComposerOutput | one of Beethoven’s last completed works ⓘ |
| questionAnswerMotif | “Muss es sein? – Es muss sein!” ⓘ |
| requiresEnsemble | string quartet ⓘ |
| scoring | string quartet ⓘ |
| style |
early Romantic
ⓘ
late Classical ⓘ |
| titleLanguage | German ⓘ |
| tonalCenter | F major ⓘ |
| typicalPerformanceContext |
chamber music recital
ⓘ
concert hall ⓘ |
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: String Quartet No. 16 in F major, Op. 135 Description of subject: String Quartet No. 16 in F major, Op. 135 is Ludwig van Beethoven’s final string quartet, noted for its concise form, introspective character, and the enigmatic “Muss es sein?” (“Must it be?”) motif in its last movement.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
String Quartet No. 15 in A minor, Op. 132
→
followedBy
→
String Quartet No. 16 in F major, Op. 135
ⓘ