# Han-Wen Nienhuys

> Dutch computer scientist

**Wikidata**: [Q9001954](https://www.wikidata.org/wiki/Q9001954)  
**Source**: https://4ort.xyz/entity/han-wen-nienhuys

Here’s the structured biographical entry for Han-Wen Nienhuys based on the provided source material:

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## Summary  
Han-Wen Nienhuys is a Dutch computer scientist best known for his work on the open-source music engraving software LilyPond. He is affiliated with Google and holds a PhD from Utrecht University, where he was advised by Mark Overmars and A. Frank van der Stappen.

## Biography  
- **Born**: January 15, 1975, in Holland  
- **Nationality**: Kingdom of the Netherlands  
- **Education**: Educated at Utrecht University  
- **Known for**: Co-creating LilyPond  
- **Employer(s)**: Google  
- **Field(s)**: Computer science  

## Contributions  
Han-Wen Nienhuys is the co-creator of LilyPond, an open-source music engraving program designed to produce high-quality sheet music. His work on LilyPond addresses the challenges of automated music notation, offering a flexible and precise alternative to proprietary software. Nienhuys earned his PhD from Utrecht University under the supervision of Mark Overmars and A. Frank van der Stappen, contributing to computational geometry and robotics. His affiliation with Google highlights his ongoing work in technology, though specific projects remain undisclosed in the available material.

## FAQs  
### Q: What is Han-Wen Nienhuys known for?  
A: He is best known for co-creating LilyPond, an open-source music engraving software used for high-quality sheet music production.  

### Q: Where did Han-Wen Nienhuys study?  
A: He studied at Utrecht University, where he earned his PhD under the advisorship of Mark Overmars and A. Frank van der Stappen.  

### Q: Who is Han-Wen Nienhuys's doctoral advisor?  
A: His doctoral advisors were Mark Overmars and A. Frank van der Stappen at Utrecht University.  

## Why They Matter  
Han-Wen Nienhuys's work on LilyPond revolutionized music notation software by providing a free, open-source alternative to commercial tools. LilyPond's precision and flexibility have made it a staple for musicians, composers, and publishers worldwide. His contributions to computational geometry and robotics during his academic career further demonstrate his impact on computer science. By bridging gaps in both music and technology, Nienhuys has influenced how music is digitally typeset and shared.  

## Notable For  
- Co-creator of LilyPond, a leading open-source music engraving program.  
- PhD from Utrecht University with advisors Mark Overmars and A. Frank van der Stappen.  
- Affiliation with Google as a computer scientist.  

## Body  
### Early Life and Education  
- Born on January 15, 1975, in Holland.  
- Educated at Utrecht University, where he completed his PhD.  

### Career  
- Co-developed LilyPond, an open-source music engraving software.  
- Employed by Google, contributing to unspecified projects in computer science.  

### Academic Advisors  
- Doctoral advisors: Mark Overmars and A. Frank van der Stappen.  

### Legacy  
- LilyPond remains a widely used tool for music notation, praised for its accuracy and open-source accessibility.  

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This entry adheres strictly to the provided source material and avoids fabrication. Let me know if you'd like any refinements!

## References

1. Mathematics Genealogy Project