# Petra Lang

> German mezzo-soprano

**Wikidata**: [Q101043](https://www.wikidata.org/wiki/Q101043)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Petra_Lang)  
**Source**: https://4ort.xyz/entity/petra-lang


## References

1. Integrated Authority File
2. BnF authorities
3. MusicBrainz
4. Virtual International Authority File
5. CiNii Research
6. Discogs
7. performing-arts.ch