# Sources and credits

The benchmark contains rendered musical excerpts and their isolated note references. Instrument recordings were selected by pitch, resampled, cropped, scaled and mixed according to the score. The editing task applies fixed gain, pitch, timing and tuning changes to these same notes.

## Instrument recordings

| Source | Credit | Terms |
| --- | --- | --- |
| [University of Iowa Musical Instrument Samples](https://theremin.music.uiowa.edu/MIS.html) | Lawrence Fritts and the University of Iowa Electronic Music Studios | The creator permits download and use in projects without restrictions. |
| [Shinyguitar](https://github.com/sfzinstruments/karoryfer.shinyguitar) | Karoryfer Samples / D. Smolken | CC0 1.0 |
| [Emilyguitar](https://github.com/sfzinstruments/karoryfer.emilyguitar) | Karoryfer Samples / D. Smolken | CC0 1.0 |
| [Swagbass](https://github.com/sfzinstruments/karoryfer.swagbass) | Karoryfer Samples / D. Smolken | CC0 1.0 |
| [Etherealwinds Harp II Community Edition](https://versilian-studios.com/etherealwinds-harp/) | Jordi Francis / Etherealwinds and Versilian Studios LLC | CC BY 4.0 |
| [Salamander Grand Piano](https://github.com/sfzinstruments/SalamanderGrandPiano) | Alexander Holm; SFZ remapping by Kinwie | CC BY 3.0 |

The source materials retain their original terms. CC0 text is included in `CC0.txt`. Attribution, links and the transformations above accompany the CC BY material.

- CC0 1.0: https://creativecommons.org/publicdomain/zero/1.0/
- CC BY 3.0: https://creativecommons.org/licenses/by/3.0/
- CC BY 4.0: https://creativecommons.org/licenses/by/4.0/

## Scores

Most score editions were selected from the `no_license_conflict` subset of [PDMX](https://zenodo.org/records/15571083), by Phillip Long, Zachary Novack, Taylor Berg-Kirkpatrick and Julian McAuley. The selected score records identify CC0 or public-domain editions; PDMX's dataset attribution is retained here. Piece titles, composers, original license links and excerpt transformations are listed in `score-credits.json`.

Two excerpts use direct public-domain Mutopia editions:

- `scns_eval_v3_029`: Johann Sebastian Bach, BWV 871, from [Mutopia 316](https://www.ibiblio.org/mutopia/cgibin/piece-info.cgi?id=316), a Bach-Gesellschaft edition. The excerpt's timing is scaled by 20/11.
- `scns_eval_v3_051`: Ludwig van Beethoven, Piano Sonata Op. 13, first movement, from [Mutopia 299](https://www.mutopiaproject.org/cgibin/piece-info.cgi?id=299), identifying the G. Schirmer 1894 / Berners 1908 edition.

The corresponding original MIDI files are included beside this notice. Score timings and crops were used to render the benchmark recordings; isolated-note and mixture audio remain aligned. Use the `evaluation.json` distributed with this release when scoring its audio.

This release uses Swagbass for the bass recordings. Project16 Rickenbacker recordings are not included.