# piano roll

> music storage medium used to operate a player piano, piano player, or reproducing piano

**Wikidata**: [Q1142040](https://www.wikidata.org/wiki/Q1142040)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Piano_roll)  
**Source**: https://4ort.xyz/entity/piano-roll


## References

1. Freebase Data Dumps. 2013