Sources & Licenses: The Data Behind This Site
LesWatanabe.com is built from public, openly licensed data. Here is every source, what we use it for, its license and its status at the last data refresh. Sources marked “needs key” can be switched on by the site operator with a free API key.
| # | Source | Used for | License | Status | Records | Updated |
|---|---|---|---|---|---|---|
| 01 | Wikidata (SPARQL) | people, works, styles, films, companies, songs | CC0 1.0 | active | 16,698 | 2026-10-17 |
| 02 | Wikipedia (English) | summaries and images for styles, people, works, films, companies | CC BY-SA 4.0 | active | 16,543 | 2026-10-17 |
| 03 | Wikipedia: Glossary of ballet & dance glossaries | ballet and dance terminology pages | CC BY-SA 4.0 | active | 281 | 2026-10-17 |
| 04 | Library of Congress: An American Ballroom Companion | historic dance manuals in the library section | Public domain (no known restrictions) | unavailable | — | 2026-10-17 |
| 05 | Project Gutenberg & Internet Archive (public-domain dance books) | library of historic dance manuals and books | Public domain in the US (pre-1931 publications); metadata CC0 | active | 1,570 | 2026-10-17 |
| 06 | NYPL Digital Collections (Jerome Robbins Dance Division) | historic photos and posters on style pages | Public domain items only (publicDomainOnly=true) | needs key | — | 2026-10-17 |
| 07 | Europeana | historic images on style pages | Open reuse only (reusability=open: PD, CC0, CC BY, CC BY-SA) | active | 127 | 2026-10-17 |
| 08 | Wikimedia Commons | image credits and thumbnails | Per file (CC BY, CC BY-SA, PD) — credited on every page | active | 50,001 | 2026-10-17 |
| 09 | Wikiquote | quotes about dance and dancer quote pages | CC BY-SA 4.0 | active | 216 | 2026-10-17 |
| 10 | IMSLP (Petrucci Music Library) | ballet score pages and dance-form sheet music lists | Metadata linked; scores are public domain or CC per IMSLP | active | 6,472 | 2026-10-17 |
| 11 | AcousticBrainz | BPM, key and dance-rhythm detection for songs | CC0 | active | 12,956 | 2026-10-17 |
| 12 | GetSongBPM | extra BPM/key/time-signature data | Free API; attribution link required | needs key | — | 2026-10-17 |
| 13 | MusicBrainz | song ↔ artist links, release years, genre tags for the BPM finder | CC0 (core data) | active | 50,911 | 2026-10-17 |
| 14 | BLS OEWS (Occupational Employment and Wage Statistics) | dancer & choreographer salary pages by state and metro area | Public domain (U.S. Bureau of Labor Statistics) | active | 1,379 | 2026-10-17 |
| 15 | BLS Occupational Outlook Handbook | career guides: how to become a dancer / choreographer | Public domain (U.S. Bureau of Labor Statistics) | active | 8 | 2026-10-17 |
| 16 | IPEDS — Integrated Postsecondary Education Data System (NCES) | colleges with dance programs by state | Public domain (U.S. Department of Education) | active | 306 | 2026-10-17 |
| 17 | College Scorecard API | tuition, admission and program earnings on college pages | Public domain (U.S. Department of Education) | active | 3,040 | 2026-10-17 |
| 18 | Compendium of Physical Activities | calories-burned pages and calculator | Facts (MET values) cited with attribution | active | 28 | 2026-10-17 |
| 19 | PubMed (NCBI E-utilities) | research digests on style and health pages | Citation metadata (NLM terms); abstracts not reproduced | active | 2 | 2026-10-17 |
| 20 | IRS Exempt Organizations Business Master File | dance companies, ballet companies and dance nonprofits by state and city | Public domain (Internal Revenue Service) | active | 6,731 | 2026-10-17 |
| 21 | ProPublica Nonprofit Explorer API | budget and revenue history on dance-company pages | Free API; data from IRS Form 990 filings | active | 4,500 | 2026-10-17 |
| 22 | OpenStreetMap (Overpass API) | dance studios and schools by state and city | ODbL 1.0 — © OpenStreetMap contributors | not run | — | |
| 23 | U.S. Census Bureau — County Business Patterns, Gazetteer, Population Estimates | number of dance & fine-arts schools per county, city coordinates, population | Public domain (U.S. Census Bureau) | active | 36,437 | 2026-10-17 |
| 24 | NEA Grant Search (Dance) | NEA dance grants by state and year; grants on company pages | Public domain (National Endowment for the Arts) | active | 5,069 | 2026-10-17 |
| 25 | Dance/USA member directory | (optional) professional company profiles | Check terms of use before enabling | off (ToS) | — | |
| 26 | Ticketmaster Discovery API | upcoming shows by city, Nutcracker season pages | API terms: link back to Ticketmaster event pages | needs key | — | 2026-10-17 |
| 27 | SeatGeek API | upcoming shows by city | API terms: link back to SeatGeek | needs key | — | 2026-10-17 |
| 28 | WDSF — World DanceSport Federation calendar | DanceSport competitions by year | Facts (event listings) with link back | unavailable | — | 2026-10-17 |
| 29 | USA Dance — competition calendar | ballroom competitions by state and year | Facts (event listings) with link back | unavailable | — | 2026-10-17 |
| 30 | Swing Planit | Lindy hop / swing festivals by year and country | Facts (event listings) with link back | active | 231 | 2026-10-17 |
| 31 | Ceder Chest (square dance resources) | (optional) square-dance club listings | Check site policy before enabling | off (ToS) | — | |
| 32 | tango.info | (optional) tango orchestra discographies | Check terms before use | unavailable | — | 2026-10-17 |
| 33 | YouTube Data API | tutorial videos on style pages | YouTube API Services Terms — embed only | needs key | — | 2026-10-17 |
| 34 | Vimeo API | dance film embeds on contemporary/modern pages | Vimeo API terms — embed only | needs key | — | 2026-10-17 |
| 35 | TMDb (The Movie Database) | dance movie lists and film pages | TMDB API terms — attribution required | needs key | — | 2026-10-17 |
| 36 | Podcast Index API (fallback: Apple iTunes Search API) | podcasts about dance | Podcast Index: CC-BY-SA-like open index; iTunes Search API terms | active | 314 | 2026-10-17 |
| 37 | Unsplash / Pexels | hero photos on style pages | Unsplash License / Pexels License — credit the photographer | needs key | — | 2026-10-17 |
| 38 | Amazon Product Advertising API | dance shoes & gear recommendations (affiliate) | Amazon Associates Program Operating Agreement | needs key | — | 2026-10-17 |
| 39 | Open Library | best books about each dance style | CC0 (metadata) | active | 71 | 2026-10-17 |
| 40 | Wikipedia/Wikidata: Broadway choreography awards | 'who choreographed [musical]' pages and choreographer awards | CC BY-SA 4.0 (Wikipedia) / CC0 (Wikidata) | active | 679 | 2026-10-17 |
| 41 | Overture Maps Places (GeoParquet via DuckDB) | dance studios, dance halls and dancewear stores by city | CDLA Permissive 2.0 — © Overture Maps Foundation and contributors | active | 31,445 | 2026-10-17 |
Attribution
- Map data © OpenStreetMap contributors, available under the Open Database License (ODbL).
- Encyclopedia text from Wikipedia and quotations from Wikiquote are licensed CC BY-SA 4.0; each page links to its source article.
- Structured data from Wikidata, MusicBrainz and AcousticBrainz is CC0. Images from Wikimedia Commons carry the author and license shown under each picture.
- Federal data (BLS, Census, NCES/IPEDS, IRS, NEA, College Scorecard, NLM/PubMed) is in the U.S. public domain.
- Book metadata from Open Library (CC0); public-domain texts are hosted by Project Gutenberg and the Internet Archive.
Spotted a problem with a source? Let us know.