# Nocturne No. 20 in C-sharp minor, Op. posth.

> composition for piano by Frederic Chopin

**Wikidata**: [Q7046547](https://www.wikidata.org/wiki/Q7046547)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Nocturne_in_C-sharp_minor,_Op._posth._(Chopin))  
**Source**: https://4ort.xyz/entity/nocturne-no-20-in-c-sharp-minor-op-posth


## References

1. [International Music Score Library Project](https://imslp.org/wiki/Nocturne_in_C_sharp_minor_(Chopin,_Frederic))
2. MusicBrainz
3. [Source](http://www.musiqueorguequebec.ca/catal/chopin/chofopus.html)
4. Grove Music Online
5. National Library of Israel Names and Subjects Authority File