sample-embed.pdf - default sample for the OMR web app
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Content : "Old Hundredth" (All people that on earth do dwell), closed-score SATB hymn,
          one page, 4 verses printed between the staves (soprano+alto on the treble
          staff, tenor+bass on the bass staff).
Melody  : Genevan Psalter (1551), attributed to Louis Bourgeois - public domain.
Text    : William Kethe (1561) - public domain.
Harmony : SATB harmonization generated for this project by a small voice-leading
          solver (corpus/synthetic/_tools/synth/harmonize.py) - dedicated CC0 1.0.
Engraving/scan: engraved with GNU LilyPond 2.24 (Emmentaler music font, TeX Gyre Schola
          text font; LilyPond output is not covered by LilyPond's GPL), rasterised at
          200 dpi grayscale and degraded (rotation -0.35 deg, paper tone/texture, lighting
          gradient, slight blur, sensor noise, JPEG q70) to look like a scan, then wrapped
          as an IMAGE-ONLY PDF (no fonts, no text layer; verified with pdffonts/pdftotext).
          The PDF and the derived files are dedicated to the public domain (CC0 1.0).

Ground truth: sample-embed.truth.musicxml (MusicXML 4.0 partwise, parts Soprano, Alto,
          Tenor, Bass; lyrics verses 1-4 on Soprano). Identical copy in
          corpus/synthetic/sample-embed-old100/ (scan.pdf, truth.musicxml).

Licence summary: public domain / CC0 - safe for public redistribution (no attribution
required; attribution above given as a courtesy). No GPL/AGPL material is embedded.