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String Quartet No. 21

composition for string quartet by Wolfgang Amadeus Mozart
VisualArtwork musical_work_composition Q3133305
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String Quartet No. 21

Summary

String Quartet No. 21 is a musical work/composition[1]. It ranks in the top 5% of musical_work_composition entities by monthly Wikipedia readership (53 views/month).[2]

Key Facts

  • String Quartet No. 21's instance of is recorded as musical work/composition[3].
  • String Quartet No. 21's composer is recorded as Wolfgang Amadeus Mozart[4].
  • String Quartet No. 21's catalog code is recorded as 575[5].
  • String Quartet No. 21 was released on January 1, 1789[6].
  • String Quartet No. 21's dedicated to is recorded as Friedrich Wilhelm II of Prussia[7].
  • String Quartet No. 21's tonality is recorded as D major[8].
  • String Quartet No. 21's copyright status is recorded as public domain[9].
  • String Quartet No. 21's copyright status is recorded as public domain[10].
  • String Quartet No. 21's form of creative work is recorded as string quartet[11].

Product Details

The following facts are restated verbatim from public-domain and CC0 open-data sources — every line is independently verifiable against the named source's catalog.

MusicBrainz — CC0 open music encyclopedia

  • Release type: Quartet[12]

  • Genre(s): classical[13]

  • Community tags: chamber music, classical[14]

  • MusicBrainz ID: bc1999aa-3826-438e-8e8e-5c42dffa519e[15]

Body

Publication

String Quartet No. 21 was published on January 1, 1789[6].

Why It Matters

String Quartet No. 21 ranks in the top 5% of musical_work_composition entities by monthly Wikipedia readership (53 views/month).[2] It has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[16]

Related Entities

Friedrich Wilhelm II of Prussia public domain Wolfgang Amadeus Mozart

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . Köchel catalogue (1st edition). wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . Köchel catalogue (1st edition). wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.

Product details (FDA / USDA / NHTSA public-domain catalog data)

  1. [12] ↑ . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.
  2. [13] ↑ . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.
  3. [14] ↑ . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.
  4. [15] ↑ . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [16] ↑ . Wikidata sitelinks. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). String Quartet No. 21. Retrieved May 3, 2026, from https://4ort.xyz/entity/string-quartet-no-21
MLA “String Quartet No. 21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/string-quartet-no-21.
BibTeX @misc{4ortxyz_string-quartet-no-21_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{String Quartet No. 21}}, year = {2026}, url = {https://4ort.xyz/entity/string-quartet-no-21}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): String Quartet No. 21 — https://4ort.xyz/entity/string-quartet-no-21 (retrieved 2026-05-03)

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