Quick Summary
All materials from the HiMMP (Heaviness in Metal Music Production) projectincluding audio files, research data, and website contentare licensed under Creative Commons Attribution 4.0 International (CC BY 4.0).
Creative Commons Attribution 4.0 International License
This is a human-readable summary of (and not a substitute for) the full legal text.
You are free to:
- Share copy and redistribute the material in any medium or format for any purpose, even commercially.
- Adapt remix, transform, and build upon the material for any purpose, even commercially.
The licensor (University of Huddersfield) cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- No additional restrictions You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Citing the HiMMP Heaviness Lab
If you reference or use materials from this interactive lab in your work, please use the following citation:
Recommended Citation for the Lab
Herbst, J-P., & Mynett, M. (2025). HiMMP Heaviness Lab:
An Interactive Demonstration of How Metal Production Techniques
Shape the Perception of Heaviness [Web application].
University of Huddersfield. https://lab.himmp.net
Hardness and punch psychoacoustic components developed with
I. Czedik-Eysenberg, S. Fenton, E. Smialek, and C. Reuter.How to Give Attribution
When using HiMMP materials, you must provide appropriate credit. Here are examples for different use cases:
For Audio Files or Research Data
Herbst, J-P., Mynett, M., Fenton, S., Czedik-Eysenberg, I.,
Smialek, E., & Reuter, C. (2025). Heaviness in Metal Music
Production (HiMMP) Dataset. University of Huddersfield.
Licensed under CC BY 4.0. Retrieved from https://www.himmp.netFor Individual Producer Mixes
[Producer Name] mix from the HiMMP (Heaviness in Metal Music
Production) project, University of Huddersfield. Licensed
under CC BY 4.0. https://www.himmp.netReplace [Producer Name] with the specific producer (e.g., "Jens Bogren", "Andrew Scheps").
For Website Content or Interactive Tools
HiMMP Heaviness Lab, based on research by Herbst et al.
(2025), University of Huddersfield. Licensed under CC BY 4.0.
https://www.himmp.netFor Academic Citations
When citing the research findings, please reference the original publications:
Herbst, J-P., Mynett, M., Fenton, S., Czedik-Eysenberg, I.,
Smialek, E., & Reuter, C. (under review). "Hard and Heavy:
A Perceptual Study of Acoustic Hardness and Heaviness
Aesthetics in Metal Music Production." Music Perception.Complete Dataset Access
The full HiMMP dataset, including raw multi-track recordings, all producer mixes, stems, and video interviews, is publicly available:
Includes: Raw multitrack recording, 9 producer mixes, mixing stems, video interviews, research data, and documentation.
Producer & Contributor Credits
The following internationally recognized producers contributed their time and expertise to create the mixes featured in this project:
Please respect the creative contributions of these professionals when using their mixes.
Research Team
University of Huddersfield
School of Arts and Humanities | School of Computing and Engineering
- Jan-Peter Herbst Project Lead & Principal Investigator
- Mark Mynett Project Lead & Co-Investigator
- Steven Fenton Co-Investigator
- Isabella Czedik-Eysenberg Co-Investigator
- Eric Smialek Co-Investigator
- Christoph Reuter Co-Investigator
Funding & Institutional Support
The HiMMP (Heaviness in Metal Music Production) project is supported by the Arts and Humanities Research Council (AHRC) in the United Kingdom.
Grant Number: AH/T010991/1
Project Duration: September 2020 August 2024
Copyright: � University of Huddersfield
Website Code License
The source code for this interactive website is licensed separately under the MIT License, allowing free use, modification, and distribution of the code itself.
The MIT License applies only to the website code, not to the audio content or research data, which remain under CC BY 4.0.
Frequently Asked Questions
Can I use these audio files in my own music productions?
Yes! You can use the audio files in any way, including in commercial music productions. You must provide attribution to the HiMMP project and indicate if you modified the files.
Can I use these materials in educational courses?
Absolutely. Educational use is encouraged! Please provide proper attribution and let your students know about the research behind these materials.
Do I need permission to share these files?
No permission needed. You can freely share and redistribute the materials as long as you include proper attribution and link to the CC BY 4.0 license.
Can I make a remix or modified version?
Yes! You can remix, transform, and build upon the material. Just indicate what changes you made and provide attribution to the original.
Can I use these materials commercially?
Yes. Commercial use is explicitly permitted under CC BY 4.0. Attribution is still required.
What if I have questions not covered here?
For specific questions about licensing or usage, please contact the research team via the main HiMMP website.
Questions or Clarifications?
For questions about licensing, attribution requirements, or usage permissions, please visit the main HiMMP website for contact information, or reach out to the principal investigator at j.herbst@hud.ac.uk.