# Density 21.5

> composition for solo flute by Edgard Varèse

**Wikidata**: [Q1189814](https://www.wikidata.org/wiki/Q1189814)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Density_21.5)  
**Source**: https://4ort.xyz/entity/density-21-5


## References

1. Grove Music Online
2. Library of Congress Authorities
3. MusicBrainz
4. Freebase Data Dumps. 2013
5. Carnegie Hall linked open data
6. National Library of Israel Names and Subjects Authority File