# Marietta Simpson

> American mezzo-soprano, born in Philadelphia, Pennsylvania (1954-)

**Wikidata**: [Q61482167](https://www.wikidata.org/wiki/Q61482167)  
**Source**: https://4ort.xyz/entity/marietta-simpson


## References

1. Integrated Authority File
2. datos.bne.es
3. Czech National Authority Database
4. Virtual International Authority File
5. MusicBrainz
6. CiNii Research
7. [Source](https://www.songkick.com/artists/2220377-marietta-simpson)
8. VIAF ID
9. NUKAT
10. MAK
11. [Source](http://digitale.beic.it/primo_library/libweb/action/search.do?fn=search&vid=BEIC&vl%283134987UI0%29=creator&vl%28freeText0%29=Simpson%20Marietta)
12. Carnegie Hall linked open data