# String Quartet No. 9

> string quartet by Ludwig van Beethoven

**Wikidata**: [Q275877](https://www.wikidata.org/wiki/Q275877)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/String_Quartet_No._9_(Beethoven))  
**Source**: https://4ort.xyz/entity/string-quartet-no-9


## References

1. Grove Music Online
2. MusicBrainz
3. Freebase Data Dumps. 2013
4. International Music Score Library Project
5. BBC Things
6. AllMusic