@misc{selection_scope,
  title = {MODAVIS Aggregator: source-selection frame},
  howpublished = {MODAVIS project},
  note = {Registry at revision 2bb6e85282e3ab11af1bcc7126290f67af176f53; aggregator/\_\_init\_\_.py, CRAWLERS dictionary; SHA-256 77a20a2ecb41b01176edab8a978ea684223429fb69c09c740390696448c7701c. Exact registered keys and collection roles are preserved in evidence.json. Access to the underlying private repository is not required to inspect this selection frame.}
}

@misc{repo_score_collections,
  title = {MODAVIS Aggregator: SOURCE\_COLLECTIONS},
  howpublished = {MODAVIS project},
  note = {Packaged extract in evidence.json; source path aggregator/digital\_sheet\_music\_transfer\_schema.py; SHA-256 dd652091e15347c1973c7b71613d7db0c5658db9307c9bfaf87c4cf7ed7de04e},
  author = {{MODAVIS project}}
}

@misc{repo_audit,
  title = {MODAVIS Aggregator: sources},
  howpublished = {MODAVIS project},
  note = {Packaged extract in evidence.json; source path documentation/source\_investigation\_audit.yaml; SHA-256 9713e7fe5625204fd806fb7fe9c670e3af84827e1b3a2d091b2110b2744053e7},
  author = {{MODAVIS project}}
}

@misc{rendered_record_npor,
  title = {NPOR - selected record (descriptive title)},
  howpublished = {British Institute of Organ Studies (BIOS)},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://npor.org.uk/survey/D00002},
  urldate = {2026-09-11}
}

@misc{rendered_record_ohs,
  title = {OHS Pipe Organ Database - selected record (descriptive title)},
  howpublished = {Organ Historical Society},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://pipeorgandatabase.org/instruments/1},
  urldate = {2026-09-11}
}

@misc{aeolianskinner_main,
  title = {Aeolian-Skinner Archives},
  howpublished = {Steve Layden (website creator); Jeff Scofield (website manager)},
  note = {bounded\_direct\_http\_get},
  url = {https://archive.pipeorgandatabase.org/aeolianskinner/main.html},
  urldate = {2026-09-10},
  author = {{Steve Layden (website creator); Jeff Scofield (website manager)}}
}

@misc{record_aeolianskinner,
  title = {Opus 511: First Baptist Church (Murfreesboro, TN)},
  howpublished = {Steve Layden (website creator); Jeff Scofield (website manager)},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://archive.pipeorgandatabase.org/aeolianskinner/Specs/Op00511.html},
  urldate = {2026-09-11}
}

@misc{record_ohta,
  title = {St Andrew's Lutheran Church Wickham Terrace},
  howpublished = {Organ Historical Trust of Australia},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://ohta.org.au/organs/organs/BrisbaneLutheran.html},
  urldate = {2026-09-11}
}

@misc{record_orgelsachsen,
  title = {Ablaß - Orgeldatenbank Sachsen},
  howpublished = {Hochschule für Musik Carl Maria von Weber Dresden},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://www.orgelforum-sachsen.de/ablass.html?articles=ablass},
  urldate = {2026-09-11}
}

@misc{record_arpschnitger,
  title = {Former organ Glückstadt Stadtkirche},
  howpublished = {Geert Jan Pottjewijd},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://arpschnitger.nl/sgluckst.html},
  urldate = {2026-09-11}
}

@misc{record_varhany,
  title = {Varhany a varhanáři v České republice},
  howpublished = {Štěpán Svoboda},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://www.varhany.net/cardheader.php?id=403\&lok=268\&podrobnosti=1},
  urldate = {2026-09-11}
}

@misc{record_orgbase,
  title = {Organ database | Complete description},
  howpublished = {Orgbase / Organ Database},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://orgbase.nl/scripts/ogb.exe?database=ob2\&\%250=2000011\&LGE=EN\&LIJST=lang},
  urldate = {2026-09-11}
}

@misc{record_iohio,
  title = {Basílica de la Soledad — IOHIO},
  howpublished = {Instituto de Órganos Históricos de Oaxaca},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://www.iohio.org.mx/en/basilica-la-soledad},
  urldate = {2026-09-11}
}

@misc{record_musiqueorguequebec,
  title = {Église Sainte-Cécile, Le Bic, (QC)},
  howpublished = {Musique et musiciens / Music and musicians},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {http://www.musiqueorguequebec.ca/orgues/quebec/bicsc.html},
  urldate = {2026-09-11}
}

@misc{record_orgelarchiv_schmidt,
  title = {Mansfeld – Stadtkirche St. Georg (Talkirche) – Orgel Verzeichnis – Orgelarchiv Schmidt},
  howpublished = {Andreas Schmidt; Stefan Weyreder},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://orgel-verzeichnis.de/mansfeld-stadtkirche-st-georg-talkirche/},
  urldate = {2026-09-11}
}

@misc{record_orgeldoc,
  title = {Orgeldokumentationszentrum HSLU - selected document (descriptive title)},
  howpublished = {Hochschule Luzern; Zentral- und Hochschulbibliothek Luzern},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://orgeldokumentationszentrum.ch/backend/v3/details.php?id=17202},
  urldate = {2026-09-11}
}

@misc{record_sonora,
  title = {SONORA - selected document (descriptive title)},
  howpublished = {Göteborg International Organ Academy Association; University of Gothenburg / GRIDH},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://orgeldatabas.gu.se/webgoart/goart/organ1.php?id=14303\&lang=sv},
  urldate = {2026-09-11}
}

@misc{lavender_audio_hereford,
  title = {Lavender Audio - Hereford Cathedral Sample Sets},
  howpublished = {Lavender Audio},
  note = {bounded\_direct\_http\_get},
  url = {https://www.lavenderaudio.co.uk/organs/hereford/hwss.html},
  urldate = {2026-09-10},
  author = {{Lavender Audio}}
}

@misc{lars_palo_vpo,
  title = {My free GrandOrgue samplesets – Lars virtual pipe organ site},
  howpublished = {Lars virtual pipe organ site},
  note = {bounded\_direct\_http\_get},
  url = {https://familjenpalo.se/vpo/download/},
  urldate = {2026-09-10},
  author = {{Palo, Lars}}
}

@misc{virtual_pipe_organs_odfs,
  title = {ODFs For GrandOrgue – Virtual Pipe Organs},
  howpublished = {Virtual Pipe Organs},
  note = {bounded\_direct\_http\_get},
  url = {https://virtualpipeorgans.wordpress.com/sample-sets/odfs-for-grandorgue/},
  urldate = {2026-09-10},
  author = {{Virtual Pipe Organs}}
}

@misc{browser_npor,
  title = {The NPOR | Home},
  howpublished = {British Institute of Organ Studies},
  note = {rendered\_browser\_page; Home page: provider heading, resource cards and footer},
  url = {https://npor.org.uk/},
  urldate = {2026-09-10},
  author = {{British Institute of Organ Studies}}
}

@misc{web_ohs,
  title = {Pipe Organ Database: Explore Historic Pipe Organs},
  howpublished = {Organ Historical Society},
  note = {web\_reader\_of\_official\_page; Home page counters and project footer},
  url = {https://pipeorgandatabase.org/},
  urldate = {2026-09-10},
  author = {{Organ Historical Society}}
}

@misc{orgbase_dbis,
  title = {DBIS - Orgeldatabase},
  howpublished = {Datenbank-Infosystem (DBIS), Universitätsbibliothek Regensburg},
  note = {bounded\_direct\_http\_get; Resource 105082, Orgeldatabase: descriptive paragraph},
  url = {https://dbis.ur.de/ALL/resources/105082},
  urldate = {2026-09-10},
  author = {{Datenbank-Infosystem (DBIS), Universitätsbibliothek Regensburg}}
}

@misc{orgbase,
  title = {Organ database | Home},
  howpublished = {Orgbase / Organ Database},
  note = {bounded\_direct\_http\_get},
  url = {http://orgbase.nl/},
  urldate = {2026-09-10},
  author = {{Orgbase / Organ Database}}
}

@misc{orgbase_about,
  title = {Organ database | Information on the database},
  howpublished = {Orgbase / Organ Database},
  note = {bounded\_direct\_http\_get},
  url = {https://orgbase.nl/info\_en.html},
  urldate = {2026-09-10},
  author = {{Orgbase / Organ Database}}
}

@misc{indo,
  title = {Inventaire national des orgues},
  howpublished = {Orgue en France},
  note = {bounded\_direct\_http\_get},
  url = {https://inventaire-des-orgues.fr/},
  urldate = {2026-09-10},
  author = {{Orgue en France}}
}

@misc{orgelsachsen,
  title = {Orgeldatenbank Sachsen - Orgeldatenbank Sachsen},
  howpublished = {Hochschule für Musik Carl Maria von Weber Dresden},
  note = {bounded\_direct\_http\_get},
  url = {https://www.orgelforum-sachsen.de/orgeldatenbank-sachsen.html},
  urldate = {2026-09-10},
  author = {{Hochschule für Musik Carl Maria von Weber Dresden}}
}

@misc{orgeldb_bayern,
  title = {Orgeldatenbank Bayern},
  howpublished = {Michael Bernhard (editor); Gesellschaft für Bayerische Musikgeschichte e.V. (original publisher)},
  note = {bounded\_direct\_http\_get},
  url = {https://orgeldb.de/},
  urldate = {2026-09-10},
  author = {{Michael Bernhard (editor); Gesellschaft für Bayerische Musikgeschichte e.V. (original publisher)}}
}

@misc{orgelseite,
  title = {Die Orgelseite - 6.622 Orgeln in 83 Ländern, Fotos, Dispositionen, Musik und CDs},
  howpublished = {Die Orgelseite},
  note = {bounded\_direct\_http\_get},
  url = {https://die-orgelseite.de/},
  urldate = {2026-09-10},
  author = {{Die Orgelseite}}
}

@misc{orgelsite,
  title = {de Orgelsite | orgelsite.nl},
  howpublished = {de Orgelsite / orgelsite.nl},
  note = {bounded\_direct\_http\_get},
  url = {https://www.orgelsite.nl/},
  urldate = {2026-09-10},
  author = {{de Orgelsite / orgelsite.nl}}
}

@misc{orguesfrance,
  title = {Accueil},
  howpublished = {Orgues en France et dans le monde},
  note = {bounded\_direct\_http\_get},
  url = {http://orguesfrance.com/},
  urldate = {2026-09-10},
  author = {{Orgues en France et dans le monde}}
}

@misc{organindex,
  title = {Organ Index (entry-point check)},
  howpublished = {Organ Index contributors},
  note = {bounded\_direct\_http\_get; HTTP 403; page content not verified},
  url = {https://organindex.de/},
  urldate = {2026-09-10},
  author = {{Organ Index contributors}}
}

@misc{varhany_about,
  title = {Varhany a varhanáři v České republice},
  howpublished = {Varhany a varhanáři v České republice},
  note = {bounded\_direct\_http\_get},
  url = {https://www.varhany.net/info.php},
  urldate = {2026-09-10},
  author = {{Svoboda, Štěpán}}
}

@misc{orgelarchiv_about,
  title = {Über Uns – Orgel Verzeichnis – Orgelarchiv Schmidt},
  howpublished = {Andreas Schmidt; Stefan Weyreder},
  note = {bounded\_direct\_http\_get},
  url = {https://orgel-verzeichnis.de/ueber-uns/},
  urldate = {2026-09-10},
  author = {{Andreas Schmidt; Stefan Weyreder}}
}

@misc{sourceforge_ourorgan_samplesets,
  title = {GrandOrgue / Samplesets / Sample Sets},
  howpublished = {GrandOrgue project contributors},
  note = {bounded\_direct\_http\_get},
  url = {https://sourceforge.net/p/ourorgan/samplesets/Sample\%20Sets/},
  urldate = {2026-09-10},
  author = {{GrandOrgue project contributors}}
}

@misc{hslu_status,
  title = {Orgeldokumentationszentrum | Hochschule Luzern},
  howpublished = {Hochschule Luzern; Zentral- und Hochschulbibliothek Luzern},
  note = {bounded\_direct\_http\_get},
  url = {https://www.hslu.ch/de-ch/musik/campus/bibliothek/spezialsammlung-musik/orgeldokumentationszentrum/},
  urldate = {2026-09-10},
  author = {{Hochschule Luzern; Zentral- und Hochschulbibliothek Luzern}}
}

@misc{browser_sonora,
  title = {Sonora: Digitising Sweden's Organ Heritage},
  howpublished = {Göteborg International Organ Academy Association; University of Gothenburg / GRIDH},
  note = {rendered\_browser\_page; About the portal; The Archives},
  url = {https://sonora.dh.gu.se/},
  urldate = {2026-09-10},
  author = {{Göteborg International Organ Academy Association; University of Gothenburg / GRIDH}}
}

@misc{arpschnitger,
  title = {Homepage Organs of Arp Schnitger and organs in Drenthe},
  howpublished = {Organs of Arp Schnitger},
  note = {bounded\_direct\_http\_get},
  url = {https://arpschnitger.nl/},
  urldate = {2026-09-10},
  author = {{Pottjewijd, Geert Jan}}
}

@misc{augustine_virtual_organs_samples,
  title = {List of AVO Hauptwerk sound samples},
  howpublished = {Augustine's Virtual Organs},
  note = {bounded\_direct\_http\_get},
  url = {https://hauptwerk-augustine.info/Sample\_sets.php},
  urldate = {2026-09-10},
  author = {{Augustine's Virtual Organs}}
}

@misc{bdo_tuning_systems,
  title = {Stimmungen},
  howpublished = {Hans Eugen Frischknecht; Jakob Schmid; hosted by Bund Deutscher Orgelbaumeister},
  note = {bounded\_direct\_http\_get},
  url = {https://bund-deutscher-orgelbaumeister.de/stimmungen/},
  urldate = {2026-09-10},
  author = {{Hans Eugen Frischknecht; Jakob Schmid; hosted by Bund Deutscher Orgelbaumeister}}
}

@misc{bdo_authors,
  title = {Stimmungen Autoren},
  howpublished = {Bund Deutscher Orgelbaumeister},
  note = {bounded\_direct\_http\_get},
  url = {https://bund-deutscher-orgelbaumeister.de/stimmungen/authors.htm},
  urldate = {2026-09-10},
  author = {{Frischknecht, Hans Eugen} and {Schmid, Jakob}}
}

@misc{binauralpipes_instruments,
  title = {Instrumente – Binauralpipes.com},
  howpublished = {Dietrich Wierczeyko / Binauralpipes},
  note = {bounded\_direct\_http\_get},
  url = {https://binauralpipes.com/instrumente},
  urldate = {2026-09-10},
  author = {{Dietrich Wierczeyko / Binauralpipes}}
}

@misc{contrebombarde_organs,
  title = {contrebombarde.com concert hall},
  howpublished = {Contrebombarde Concert Hall},
  note = {bounded\_direct\_http\_get},
  url = {https://www.contrebombarde.com/concerthall/organs/search},
  urldate = {2026-09-10},
  author = {{Contrebombarde Concert Hall}}
}

@misc{digital_sheet_music,
  title = {MusicXML Sites: A List of Sites with Sheet Music in MusicXML Format},
  howpublished = {MakeMusic, Inc.},
  note = {bounded\_direct\_http\_get},
  url = {https://www.musicxml.com/music-in-musicxml/},
  urldate = {2026-09-10},
  author = {{MakeMusic, Inc.}}
}

@misc{estey,
  title = {Estey Pipe Organs Brattleboro Vermont Virtual Museum},
  howpublished = {Matrix Associates / The Estey Organ virtual museum},
  note = {bounded\_direct\_http\_get},
  url = {https://archive.pipeorgandatabase.org/estey/},
  urldate = {2026-09-10},
  author = {{Matrix Associates / The Estey Organ virtual museum}}
}

@misc{record_estey,
  title = {Opus 1 - First Methodist Church, Brattleboro, VT},
  howpublished = {Matrix Associates / The Estey Organ virtual museum},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://archive.pipeorgandatabase.org/estey/Opus1.html},
  urldate = {2026-09-11}
}

@misc{evensong_hauptwerk_samplesets,
  title = {Samplesets for Hauptwerk – EVENSONG LLC},
  howpublished = {Evensong LLC},
  note = {bounded\_direct\_http\_get},
  url = {https://www.evensongmusic.net/?page\_id=155},
  urldate = {2026-09-10},
  author = {{Evensong LLC}}
}

@misc{evensong_rights,
  title = {LICENSE AGREEMENT – HW SAMPLES – EVENSONG LLC},
  howpublished = {Evensong LLC},
  note = {bounded\_direct\_http\_get},
  url = {https://www.evensongmusic.net/?page\_id=3884},
  urldate = {2026-09-10},
  author = {{Evensong LLC}}
}

@misc{gdo_intro,
  title = {Literaturdatenbank - Gesellschaft der Orgelfreunde},
  howpublished = {Gesellschaft der Orgelfreunde},
  note = {bounded\_direct\_http\_get},
  url = {https://www.gdo.de/recherchen/literaturdatenbank},
  urldate = {2026-09-10},
  author = {{Reichling, Alfred} and {Reichling, Matthias}}
}

@misc{gdo_literature,
  title = {GDO Literaturdatenbank (entry-point check)},
  howpublished = {Alfred Reichling; Matthias Reichling; Gesellschaft der Orgelfreunde},
  note = {bounded\_direct\_http\_get; HTTP 500; page content not verified},
  url = {https://literaturdb.gdo.de/bib.php},
  urldate = {2026-09-10},
  author = {{Alfred Reichling; Matthias Reichling; Gesellschaft der Orgelfreunde}}
}

@misc{gdo_orgelbauer_links,
  title = {Orgelbauer - Gesellschaft der Orgelfreunde},
  howpublished = {Gesellschaft der Orgelfreunde},
  note = {bounded\_direct\_http\_get},
  url = {https://www.gdo.de/recherchen/links/orgelbauer},
  urldate = {2026-09-10},
  author = {{Gesellschaft der Orgelfreunde}}
}

@misc{grandorgue_github_wiki,
  title = {Sample Sets · GrandOrgue/grandorgue Wiki · GitHub},
  howpublished = {GrandOrgue project contributors},
  note = {bounded\_direct\_http\_get},
  url = {https://github.com/GrandOrgue/grandorgue/wiki/Sample-Sets},
  urldate = {2026-09-10},
  author = {{GrandOrgue project contributors}}
}

@misc{record_indo,
  title = {Orgue à rouleaux église Saint-Pierre - Airvault, Deux-Sèvres},
  howpublished = {Orgue en France},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://inventaire-des-orgues.fr/detail/orgue-airvault-eglise-saint-pierre-fr-79005-airva-stpier1-x/},
  urldate = {2026-09-11}
}

@misc{iohio,
  title = {IOHIO},
  howpublished = {Instituto de Órganos Históricos de Oaxaca},
  note = {bounded\_direct\_http\_get},
  url = {https://www.iohio.org.mx/},
  urldate = {2026-09-10},
  author = {{Instituto de Órganos Históricos de Oaxaca}}
}

@misc{iohio_home,
  title = {Home | Explore, Conserve, Enjoy Now — IOHIO},
  howpublished = {Instituto de Órganos Históricos de Oaxaca},
  note = {bounded\_direct\_http\_get},
  url = {https://www.iohio.org.mx/en/home},
  urldate = {2026-09-10},
  author = {{Instituto de Órganos Históricos de Oaxaca}}
}

@misc{jeux_d_orgues_downloads,
  title = {Jeux d'orgues},
  howpublished = {Jeux d'orgues},
  note = {bounded\_direct\_http\_get},
  url = {https://www.jeuxdorgues.com/},
  urldate = {2026-09-10},
  author = {{Jeux d'orgues}}
}

@misc{kirchenorgelforum,
  title = {Kirchenorgel-Forum},
  howpublished = {Kirchenorgel-Forum},
  note = {bounded\_direct\_http\_get},
  url = {https://www.kirchenorgelforum.at/},
  urldate = {2026-09-10},
  author = {{Kirchenorgel-Forum}}
}

@misc{indexed_milan,
  title = {Instruments: Milan Digital Audio},
  howpublished = {Milan Digital Audio},
  note = {search\_index\_of\_official\_page; Instrument catalogue product headings; indexed age reported as last month},
  url = {https://milandigitalaudio.com/instruments/},
  urldate = {2026-09-10},
  author = {{Milan Digital Audio}}
}

@misc{milan_digital_audio_instruments,
  title = {Milan Digital Audio Instruments (entry-point check)},
  howpublished = {Milan Digital Audio},
  note = {bounded\_direct\_http\_get; HTTP 403; page content not verified},
  url = {https://milandigitalaudio.com/instruments/},
  urldate = {2026-09-10},
  author = {{Milan Digital Audio}}
}

@misc{mps_orgelseite_filebase,
  title = {Filebase - MPS Orgelseite},
  howpublished = {MPS Orgelseite contributors},
  note = {bounded\_direct\_http\_get},
  url = {https://mps-orgelseite.de/home/filebase/},
  urldate = {2026-09-10},
  author = {{MPS Orgelseite contributors}}
}

@misc{musiqueorguequebec,
  title = {Musique et musiciens / Music and musicians},
  howpublished = {Musique et musiciens / Music and musicians},
  note = {bounded\_direct\_http\_get},
  url = {http://www.musiqueorguequebec.ca/},
  urldate = {2026-09-10},
  author = {{Musique et musiciens / Music and musicians}}
}

@misc{browser_musixplora,
  title = {musiXplora: Über den musiXplora},
  howpublished = {musiXplora / Universität Leipzig},
  note = {rendered\_browser\_page; About text, domain navigation; person-search interface at /musici/; imprint links at /impressum/},
  url = {https://musixplora.de/about/},
  urldate = {2026-09-10},
  author = {{musiXplora / Universität Leipzig}}
}

@misc{nomine,
  title = {Historische Orgeln in Norddeutschland entdecken – NOMINE e.V.},
  howpublished = {Norddeutsche Orgelmusikkultur in Niedersachsen und Europa e.V. (NOMINE)},
  note = {bounded\_direct\_http\_get},
  url = {https://nomine.net/},
  urldate = {2026-09-10},
  author = {{Norddeutsche Orgelmusikkultur in Niedersachsen und Europa e.V. (NOMINE)}}
}

@misc{record_nomine,
  title = {Abbehausen, St. Laurentius - Nomine},
  howpublished = {Norddeutsche Orgelmusikkultur in Niedersachsen und Europa e.V. (NOMINE)},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://nomine.net/orgel/abbehausen-st-laurentius/},
  urldate = {2026-09-11}
}

@misc{indexed_nycago,
  title = {The New York City Organ Project: Organs in the Borough of Manhattan},
  howpublished = {New York City Chapter, American Guild of Organists},
  note = {search\_index\_of\_official\_page; Page introduction and borough navigation; indexed age reported as 2.9 years},
  url = {https://www.nycago.org/Organs/NYC/},
  urldate = {2026-09-10},
  author = {{New York City Chapter, American Guild of Organists}}
}

@misc{nycago_catalogue,
  title = {nycago\_catalogue},
  howpublished = {New York City Chapter, American Guild of Organists},
  note = {bounded\_direct\_http\_get; HTTP 403; page content not verified},
  url = {https://www.nycago.org/Organs/NYC/},
  urldate = {2026-09-10},
  author = {{New York City Chapter, American Guild of Organists}}
}

@misc{record_nycago,
  title = {NYC AGO - selected document (descriptive title)},
  howpublished = {New York City Chapter, American Guild of Organists},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://nycago.org/Organs/Brx/html/FordhamSkatingRink.html},
  urldate = {2026-09-11}
}

@misc{ohs,
  title = {Pipe Organ Database | Explore Historic Pipe Organs},
  howpublished = {Organ Historical Society},
  note = {bounded\_direct\_http\_get},
  url = {https://pipeorgandatabase.org/},
  urldate = {2026-09-10},
  author = {{Organ Historical Society}}
}

@misc{ohta,
  title = {Organ Historical Trust of Australia},
  howpublished = {Organ Historical Trust of Australia},
  note = {bounded\_direct\_http\_get},
  url = {https://ohta.org.au/},
  urldate = {2026-09-10},
  author = {{Organ Historical Trust of Australia}}
}

@misc{ohta_rights,
  title = {Copyright and privacy policy - Organ Historical Trust of Australia},
  howpublished = {Organ Historical Trust of Australia},
  note = {bounded\_direct\_http\_get},
  url = {https://ohta.org.au/copyright-privacy-policy/},
  urldate = {2026-09-10},
  author = {{Organ Historical Trust of Australia}}
}

@misc{record_organindex,
  title = {Organ Index - selected document (descriptive title)},
  howpublished = {Organ Index contributors},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://organindex.de},
  urldate = {2026-09-11}
}

@misc{orgelarchiv_schmidt,
  title = {Orgel Verzeichnis – Orgelarchiv Schmidt – Deutschland – Schweiz – Österreich},
  howpublished = {Andreas Schmidt; Stefan Weyreder},
  note = {bounded\_direct\_http\_get},
  url = {https://orgel-verzeichnis.de/},
  urldate = {2026-09-10},
  author = {{Andreas Schmidt; Stefan Weyreder}}
}

@misc{record_orgeldb_bayern,
  title = {ODB},
  howpublished = {Michael Bernhard (editor); Gesellschaft für Bayerische Musikgeschichte e.V. (original publisher)},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://orgeldb.de/cgi-bin/dispo?satz=917591979},
  urldate = {2026-09-11}
}

@misc{orgeldoc,
  title = {Orgeldokumentationszentrum der Hochschule Luzern – Musik},
  howpublished = {Hochschule Luzern; Zentral- und Hochschulbibliothek Luzern},
  note = {bounded\_direct\_http\_get},
  url = {https://orgeldokumentationszentrum.ch/},
  urldate = {2026-09-10},
  author = {{Hochschule Luzern; Zentral- und Hochschulbibliothek Luzern}}
}

@misc{orgelseite_imprint,
  title = {Impressum},
  howpublished = {Die Orgelseite},
  note = {bounded\_direct\_http\_get},
  url = {https://die-orgelseite.de/impressum.htm},
  urldate = {2026-09-10},
  author = {{Die Orgelseite}}
}

@misc{record_orgelseite_list,
  title = {Orgeldatenbank mit Fotos, Dispositionen und Klangbeispielen - Seite 001},
  howpublished = {Die Orgelseite},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://die-orgelseite.de/orgelliste\_001.htm},
  urldate = {2026-09-11}
}

@misc{record_orgelsite,
  title = {Dordrecht, Grote Kerk, Hoofdorgel – de Orgelsite | orgelsite.nl},
  howpublished = {de Orgelsite / orgelsite.nl},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://www.orgelsite.nl/dordrecht-grote-kerk-hoofdorgel/},
  urldate = {2026-09-11}
}

@misc{orgelverzeichnis_ch,
  title = {Orgelverzeichnis Schweiz},
  howpublished = {Peter Fasler; François Comment / Orgelverzeichnis Schweiz},
  note = {bounded\_direct\_http\_get},
  url = {https://orgelverzeichnis.ch/},
  urldate = {2026-09-10},
  author = {{Peter Fasler; François Comment / Orgelverzeichnis Schweiz}}
}

@misc{swiss_rights,
  title = {Urheber},
  howpublished = {Peter Fasler; François Comment / Orgelverzeichnis Schweiz},
  note = {bounded\_direct\_http\_get},
  url = {https://orgelverzeichnis.ch/Orgelverzeichnis/urheber.htm},
  urldate = {2026-09-10},
  author = {{Peter Fasler; François Comment / Orgelverzeichnis Schweiz}}
}

@misc{record_orgelverzeichnis_ch,
  title = {Aarau alte Kant. Schule, Orgel-Profile Aargau},
  howpublished = {Peter Fasler; François Comment / Orgelverzeichnis Schweiz},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://orgelverzeichnis.ch/AGProfile/aarau\_gymalt.htm},
  urldate = {2026-09-11}
}

@misc{orguesch,
  title = {Orgues.ch - Orgues en Suisse},
  howpublished = {Orgues.ch},
  note = {bounded\_direct\_http\_get},
  url = {https://www.orgues.ch/},
  urldate = {2026-09-10},
  author = {{Orgues.ch}}
}

@misc{record_orguesch,
  title = {Orgue non trouvé},
  howpublished = {Orgues.ch},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://www.orgues.ch/orgues/orgue-de-eglise-catholique-de-burgdorf},
  urldate = {2026-09-11}
}

@misc{record_orguesfrance,
  title = {Auditorium de Radio-France - Paris 16è},
  howpublished = {Orgues en France et dans le monde},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {http://orguesfrance.com/ParisAuditoriumRadioFrance.html},
  urldate = {2026-09-11}
}

@misc{oswa,
  title = {The Organ Society of Western Australia},
  howpublished = {Organ Society of Western Australia},
  note = {bounded\_direct\_http\_get},
  url = {https://www.oswa.org.au/},
  urldate = {2026-09-10},
  author = {{Organ Society of Western Australia}}
}

@misc{record_oswa,
  title = {Pipe Organs in WA},
  howpublished = {Organ Society of Western Australia},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://www.oswa.org.au/sup/WAOrgans/Albany/AlbanyFreeReformed.html},
  urldate = {2026-09-11}
}

@misc{pcorgan_hauptwerk_samplesets,
  title = {PC organ Hauptwerk virtual software organ on computer via midi. Compare sampleset with free mp3},
  howpublished = {PCorgan},
  note = {bounded\_direct\_http\_get},
  url = {https://www.pcorgan.com/SampleSetsEN.html},
  urldate = {2026-09-10},
  author = {{van Ginkel, Gert}}
}

@misc{pcorgan_about,
  title = {PC organ Hauptwerk virtual software organ on computer via midi. Gert van Ginkel The Netherlands. Compare sampleset with free mp3},
  howpublished = {PCorgan},
  note = {bounded\_direct\_http\_get},
  url = {https://www.pcorgan.com/OverPCorganEN.html},
  urldate = {2026-09-10},
  author = {{van Ginkel, Gert}}
}

@misc{piotr_grabowski_go_versions,
  title = {GrandOrgue versions - Piotr Grabowski - Virtual Pipe Organ Sample Sets},
  howpublished = {Piotr Grabowski},
  note = {bounded\_direct\_http\_get},
  url = {https://piotrgrabowski.pl/grandorgue-versions/},
  urldate = {2026-09-10},
  author = {{Piotr Grabowski}}
}

@misc{piotr_grabowski_instruments,
  title = {Instruments - Piotr Grabowski - Virtual Pipe Organ Sample Sets},
  howpublished = {Piotr Grabowski},
  note = {bounded\_direct\_http\_get},
  url = {https://piotrgrabowski.pl/instruments/},
  urldate = {2026-09-10},
  author = {{Piotr Grabowski}}
}

@misc{pipedreams,
  title = {Pipedreams | Pipedreams},
  howpublished = {Pipedreams},
  note = {bounded\_direct\_http\_get},
  url = {https://www.pipedreams.org/},
  urldate = {2026-09-10},
  author = {{Pipedreams}}
}

@misc{record_pipedreams,
  title = {1987 Casavant organ at the Jack Singer Concert Hall of the Calgary Center for the Performing Arts, Calgary, Canada | Pipedreams},
  howpublished = {Pipedreams},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://www.pipedreams.org/profile/gallery/canada/calgary\_jack-singer\_casavant},
  urldate = {2026-09-11}
}

@misc{pipeorganmap,
  title = {Home: Discover the World of Pipe Organs | Pipe Organ Map},
  howpublished = {Leif-Erik Hallmann / Pipe Organ Map},
  note = {bounded\_direct\_http\_get},
  url = {https://pipeorganmap.com/},
  urldate = {2026-09-10},
  author = {{Leif-Erik Hallmann / Pipe Organ Map}}
}

@misc{record_pipeorganmap,
  title = {Lille, Cathédrale Notre-Dame-de-la-Treille | Pipe Organ Map},
  howpublished = {Leif-Erik Hallmann / Pipe Organ Map},
  note = {Selected document inspected or attempted on 11 September 2026; see evidence.json and the individual catalogue account. Access is not a source-wide validation.},
  url = {https://pipeorganmap.com/organ/lille-cathédrale-notre-dame-de-la-treille},
  urldate = {2026-09-11}
}

@misc{ridim_iconography,
  title = {RIdIM},
  howpublished = {RIdIM Germany / Bayerische Staatsbibliothek},
  note = {bounded\_direct\_http\_get},
  url = {https://ridim.musiconn.de/ridim/},
  urldate = {2026-09-10},
  author = {{RIdIM Germany / Bayerische Staatsbibliothek}}
}

@misc{ridim_imprint,
  title = {Impressum - https://ridim.musiconn.de},
  howpublished = {RIdIM Germany / Bayerische Staatsbibliothek},
  note = {bounded\_direct\_http\_get},
  url = {https://ridim.musiconn.de/impressum},
  urldate = {2026-09-10},
  author = {{RIdIM Germany / Bayerische Staatsbibliothek}}
}

@misc{sakralorgelforum,
  title = {Sakralorgelforum},
  howpublished = {Sakralorgelforum},
  note = {bounded\_direct\_http\_get},
  url = {https://www.sakralorgelforum.net/},
  urldate = {2026-09-10},
  author = {{Sakralorgelforum}}
}

@misc{sonora_project,
  title = {404 Not Found},
  howpublished = {Göteborg International Organ Academy Association; University of Gothenburg / GRIDH},
  note = {bounded\_direct\_http\_get; HTTP 404; page content not verified},
  url = {https://organacademy.se/svenskt-digitalt-orgelarkiv},
  urldate = {2026-09-10},
  author = {{Göteborg International Organ Academy Association; University of Gothenburg / GRIDH}}
}

@misc{sonus_paradisi_free_stuff,
  title = {Sonus Paradisi Free Stuff / Blog SonusParadisi.cz},
  howpublished = {Sonus Paradisi},
  note = {bounded\_direct\_http\_get},
  url = {https://www.sonusparadisi.cz/en/blog/category/free-stuff/},
  urldate = {2026-09-10},
  author = {{Sonus Paradisi}}
}

@misc{varhany,
  title = {Varhany a varhanáři v České republice},
  howpublished = {Varhany a varhanáři v České republice},
  note = {bounded\_direct\_http\_get},
  url = {https://www.varhany.net/},
  urldate = {2026-09-10},
  author = {{Svoboda, Štěpán}}
}

@misc{vi_control,
  title = {Vi-Control},
  howpublished = {Frederick Russ / VI-Control},
  note = {bounded\_direct\_http\_get},
  url = {https://vi-control.net/portal/},
  urldate = {2026-09-10},
  author = {{Frederick Russ / VI-Control}}
}

@misc{virtual_pipe_organs_free_producers,
  title = {Free Sample Sets and Producers – Virtual Pipe Organs},
  howpublished = {Virtual Pipe Organs},
  note = {bounded\_direct\_http\_get},
  url = {https://virtualpipeorgans.wordpress.com/sample-sets/free-sample-set-producers/},
  urldate = {2026-09-10},
  author = {{Virtual Pipe Organs}}
}

@misc{vpo_about,
  title = {About – Virtual Pipe Organs},
  howpublished = {Virtual Pipe Organs},
  note = {bounded\_direct\_http\_get},
  url = {https://virtualpipeorgans.wordpress.com/about/},
  urldate = {2026-09-10},
  author = {{Virtual Pipe Organs}}
}

@misc{score_pdmx,
  title = {PDMX: A Large-Scale Public Domain MusicXML Dataset for Symbolic Music Processing | Zenodo},
  howpublished = {Zenodo},
  note = {bounded\_direct\_http\_get},
  url = {https://zenodo.org/records/15571083},
  urldate = {2026-09-10},
  year = {2025},
  author = {{Long, Phillip} and {Novack, Zachary} and {McAuley, Julian} and {Berg-Kirkpatrick, Taylor}}
}

@misc{score_orgelbuechlein,
  title = {GitHub - yui-u/little-organ-analyses: The Little Organ Book Dataset · GitHub},
  howpublished = {GitHub repository yui-u/little-organ-analyses},
  note = {bounded\_direct\_http\_get},
  url = {https://github.com/yui-u/little-organ-analyses},
  urldate = {2026-09-10},
  author = {{Asai, H.} and {Gao, Y.} and {Shimosaka, S.} and {Tojo, S.} and {Uehara, Y.}}
}

@misc{score_imslp_wima,
  title = {IMSLP: Free Sheet Music PDF Download},
  howpublished = {IMSLP / Petrucci Music Library; Werner Icking Music Archive contributors},
  note = {bounded\_direct\_http\_get},
  url = {https://imslp.org/},
  urldate = {2026-09-10},
  author = {{IMSLP / Petrucci Music Library; Werner Icking Music Archive contributors}}
}

@misc{score_mutopia,
  title = {The Mutopia Project},
  howpublished = {The Mutopia Project and individual typesetters},
  note = {bounded\_direct\_http\_get},
  url = {https://www.mutopiaproject.org/},
  urldate = {2026-09-10},
  author = {{The Mutopia Project and individual typesetters}}
}

@misc{mutopia_rights,
  title = {Mutopia: License details},
  howpublished = {The Mutopia Project and individual typesetters},
  note = {bounded\_direct\_http\_get},
  url = {https://www.mutopiaproject.org/legal.html},
  urldate = {2026-09-10},
  author = {{The Mutopia Project and individual typesetters}}
}

@misc{score_musescore_direct,
  title = {MuseScore.com and individual score contributors (entry-point check)},
  howpublished = {MuseScore.com and individual score contributors},
  note = {bounded\_direct\_http\_get; HTTP 403; page content not verified},
  url = {https://musescore.com/},
  urldate = {2026-09-10},
  author = {{MuseScore.com and individual score contributors}}
}

@misc{audit_orkasa,
  title = {EVLKS - interessiert: Orgeln},
  howpublished = {Evangelisch-Lutherische Landeskirche Sachsens},
  note = {bounded\_direct\_http\_get},
  url = {https://www.evlks.de/feiern/kirchenmusik/orgeln/#c3681},
  urldate = {2026-09-10},
  author = {{Evangelisch-Lutherische Landeskirche Sachsens}}
}

@misc{audit_organstops,
  title = {Encyclopedia of Organ Stops},
  howpublished = {Encyclopedia of Organ Stops},
  note = {bounded\_direct\_http\_get},
  url = {http://www.organstops.org/},
  urldate = {2026-09-10},
  author = {{Stauff, Edward L.}}
}

@misc{audit_welt_orgel_archiv,
  title = {Welt-Orgel-Archiv (title recorded in the investigation audit) (entry-point check)},
  howpublished = {Welt-Orgel-Archiv (title recorded in the investigation audit)},
  note = {bounded\_direct\_http\_get; HTTP 404; page content not verified},
  url = {http://orgelarchiv.orgel-information.de/},
  urldate = {2026-09-10},
  author = {{Welt-Orgel-Archiv (title recorded in the investigation audit)}}
}