# Waltz No. 9 in A-flat major, Op. posth. 69, No. 1

> Waltz by Frédéric Chopin.

**Wikidata**: [Q4008434](https://www.wikidata.org/wiki/Q4008434)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Waltzes,_Op._69_(Chopin))  
**Source**: https://4ort.xyz/entity/waltz-no-9-in-a-flat-major-op-posth-69-no-1


## References

1. Grove Music Online
2. MusicBrainz
3. [Source](http://www.musiqueorguequebec.ca/catal/chopin/chofopus.html)
4. [Source](https://musicbrainz.org/work/cf315953-a2bf-32ec-be4b-0d4bfaf05e97)
5. [Source](https://www.musiqueorguequebec.ca/catal/chopin/chofopus.html)
6. National Library of Israel Names and Subjects Authority File