tango
Enable an AI agent to recognise a tango expression, assess its musical, movement and contextual coherence, and identify appropriate ways to interpret, perform, teach or adapt it.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
Researched by: Codex + Grok
Purpose and description
Enable an AI agent to recognise a tango expression, assess its musical, movement and contextual coherence, and identify appropriate ways to interpret, perform, teach or adapt it.
Tango is a popular-music genre and partnered dance practice that formed in the late nineteenth century in the Río de la Plata ports of Buenos Aires and Montevideo, organised around marked 2/4 or 4/4 phrasing, an improvisatory lead-follow embrace, and a sung and instrumental repertoire that was later standardised into staged, competitive-ballroom and nationally distinct song traditions.
It can be Assess a tango identification against explicit evidence and a named practice context.; Annotate musical passages with cues relevant to tango interpretation or movement.; Compare versions for changes in phrasing, arrangement and intended dance use.; Assess a movement interpretation against its music, coordination requirements and setting.; Suggest practice exercises or adaptations consistent with stated tango conventions and participant constraints.; Flag disputed boundaries or missing evidence before applying a more specific tango label..
Distinguishing features
Require contextual or practice-based evidence for a tango identification; a title containing 'tango' is insufficient.
Distinguish music-only, dance-only and combined expressions rather than requiring a partnered dance in every instance.
Test the identification against a named tango tradition or practice, with explicit criteria, rather than treating one rhythm or embrace configuration as universally decisive.
Separate tango identification from attendance at a tango event: surrounding repertoire or activities do not automatically become tango.
Distinguish participation in a tango practice from borrowing isolated tango-associated sounds, steps or visual motifs.
Scope
+ The evidence and context supporting identification as tango
+ Relationships between tango music, dance and their combined expression
+ Musical phrasing, pulse and arrangement features relevant to interpretation or dancing
+ Movement organisation, partner coordination and musical response where dance is present
+ Tradition-specific conventions, adaptations and disputed classifications
- Audio file encoding, storage and playback infrastructure
- Biographies and identities of composers, musicians, dancers and teachers
- Milongas as organised events, including admission, scheduling and venue management
- Song lyrics as independently analysed literary works
- General movement health, injury assessment and rehabilitation
- Products, services or code words named Tango unless registry evidence establishes that meaning
Characteristics
- Expression mode
- music; dance; combined music and dance; mixed expression; unresolved Determines which musical, movement and coordination evidence is applicable.
- Claimed tango tradition
- Named practice or tradition, linked to the person or source making the attribution Makes classification criteria explicit and prevents one practice's conventions from becoming universal requirements.
- Identification status
- proposed; supported within a stated context; contested; unresolved Controls how confidently an agent may label or recommend the expression.
- Pulse and tempo profile
- Beats per minute with beat unit, passage boundaries and estimation method; variable or indeterminate where appropriate Supports musical comparison and movement planning without mistaking tempo for proof of tango identity.
- Phrase and accent organisation
- Passage-specific descriptions of phrase boundaries, accents, pauses and contrasts Records the musical cues to which an interpretation or dance may respond.
- Movement composition mode
- improvised; choreographed; mixed; unknown; not applicable Changes how an agent assesses variation, coordination and the feasibility of alterations.
- Partner coordination arrangement
- Participants linked by stated movement-initiation, response and contact arrangements; solo or not applicable where appropriate Makes coordination requirements explicit without inferring roles from gender.
- Intended practice setting
- social dancing; stage performance; musical listening; instruction; competition; other stated setting Determines which criteria of suitability and acceptable variation matter.
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.tango
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 5 bundles · 9 layers · 16 findings · 24 questions.
Tango identity and boundaries Establishes what is being called tango and on whose criteria.
The registry supplies no definition, and the model must distinguish a supported identification from a name or stylistic resemblance.
Referent and expression
Identifies the expression being assessed and which aspects carry its tango identity.
Basis of tango identification
Record whether the tango claim concerns music, dance or their relationship, together with supporting evidence.
- Does 'tango' identify a musical form, a dance practice, a combined expression or another referent here? definition
- Who identifies this expression as tango, and what evidence or practice context supports that identification? provenance
Tradition and neighbours
Makes the classification local to an explicit tradition and distinguishes adjacent forms.
Contextual boundary tests
Record the criteria used to distinguish tango from neighbouring repertoire, related dances and expressions borrowing tango motifs.
- Which named tango practice supplies the criteria used in this assessment? definition
- How does that practice distinguish tango from milonga, vals or a tango-inspired hybrid in this particular case? boundary
Musical organisation and interpretation Captures the musical structure that supports a tango interpretation and, where relevant, dancing.
A tango assessment needs passage-level musical evidence rather than a generic genre label or a single tempo value.
Pulse, phrasing and accents
Records temporal features that guide listening, interpretation and movement choices.
Musical cues for response
Identify pulse, phrase boundaries, accents and pauses without assuming a universal tango rhythm.
- What pulse and tempo changes can be established, using which beat unit and passage boundaries? measurement
- Which audible phrase endings, accents or pauses offer meaningful choices for a tango interpretation? measurement
Arrangement and version
Separates the underlying musical work from the particular rendition being assessed.
Version-specific tango evidence
Record how instrumentation, articulation, vocal delivery and arrangement affect this version's identification and use.
- Which composition, arrangement and performance does the musical assessment refer to? provenance
- Which features of this rendition support or complicate its intended use for tango listening or dancing? boundary
Movement and partner dialogue Describes how a danced expression organises movement, contact and response to music.
A list of named steps cannot establish how a tango dance works or whether its movement choices are feasible.
Movement and musical response
Connects movement choices to their timing and stated tango practice.
Movement organisation
Record weight transfers, walking, pivots, turns and pauses where present, including how they relate to musical cues.
- How are weight transfers, directional changes and pauses organised relative to the music in the observed passage? measurement
- Which movement relationships support identification with the stated tango practice rather than merely resembling individual tango steps? boundary
Contact, roles and composition
Records how participants coordinate and how much of the movement is predetermined.
Coordination requirements
Make contact arrangements, movement roles and improvisational or choreographic constraints explicit.
- How are movement initiation, response, contact and role changes arranged between participants, if partners are involved? definition
- What must participants agree or practise before changing the embrace, timing or planned movement sequence? action
Practice fit and adaptation Assesses a tango expression against its intended setting and the consequences of changing it.
Suitability for a social floor, a stage or a lesson depends on different tango-specific expectations.
Setting and readiness
Establishes the requirements that make this expression usable in its intended tango setting.
Setting-specific suitability
Record musical, spatial and coordination requirements relevant to the proposed use.
- Is the expression intended for social dancing, stage presentation, listening, instruction or competition, and whose conventions apply? definition
- Which changes to movement size, navigation, musical selection or coordination are needed for the stated setting? action
Adaptation and continuity
Tracks what an alteration preserves and when its tango classification requires reassessment.
Consequences of tango adaptation
Assess how altered music, movement or presentation affects the claimed relationship to a tango practice.
- What musical or movement relationships should an adaptation preserve to meet its stated tango purpose? action
- At what point would practitioners using the declared criteria describe the result as a hybrid or tango-inspired expression? boundary
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Kinds and varieties
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Argentine social tango (tango de salón / milonguero close-embrace practice at milongas)
- Tango canyengue (early orillero style, more corte and quebrada, typically more rhythmic and bent-kneed)
- Tango nuevo (open-embrace social vocabulary and the related post-Piazzolla musical language)
- Tango escenario / tango fantasía (choreographed stage and show tango)
- International Standard tango (WDSF/WDC DanceSport; closed hold, staccato action)
- American Smooth tango (NDCA syllabus; closed and open work)
- Finnish tango (independent popular-song and couple-dance tradition, often minor-key)
- Tango canción and Golden Age orquesta repertoire (recorded and sung tango as milonga music)
- Which of these kinds and varieties hold for the sense of tango this model covers, and on what evidence? provenance
Identifiers and schemes
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Wikidata - Q338450 - Music-genre item used as the registry's primary identifier; the dance is Q143902.
- Wikidata - Q143902 - Tango as a dance; do not collapse this with the music-genre item.
- UNESCO ICH element - 00258 - Representative List inscription titled Tango, states parties Argentina and Uruguay, 2009.
- Library of Congress Subject Headings - Tango (Dance); Tangos - LCSH splits the dance from the musical form (plural 'Tangos' for the genre/compositions).
- Library of Congress Classification - GV1796.T3 - Classification number commonly used for tango as a dance.
- MusicBrainz genre - name 'Tango' (UUID assigned per genre record) - Names recordings and works; the UUID should be read from MusicBrainz rather than guessed.
- Which of these identifiers and schemes hold for the sense of tango this model covers, and on what evidence? provenance
Standards and regulation
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- UNESCO Convention for the Safeguarding of the Intangible Cultural Heritage (2003), UNESCO - legal frame for the 2009 tango inscription.
- UNESCO Representative List of the Intangible Cultural Heritage of Humanity - Tango (element 00258, 2009), nominated by Argentina and Uruguay.
- World DanceSport Federation Competition Rules - International Standard tango as a DanceSport discipline, including meter and tempo prescriptions.
- World Dance Council professional Standard syllabus and competition rules - ballroom tango as a closed-hold Standard dance.
- National Dance Council of America (NDCA) American Smooth syllabus - American tango figures and hold conventions.
- Berne Convention as implemented in national copyright law - governs composition, lyric and recording reuse; milonga DJs and stage companies are users, not a tango-specific code.
- Which of these standards and regulation hold for the sense of tango this model covers, and on what evidence? provenance
Real-world use
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Social dancing at milongas, organised in tandas of typically three or four recorded tangos separated by a cortina, with partner choice often by cabeceo/mirada.
- Live performance by orquesta típica, solo singers and later nuevo and electrotango ensembles in theatres, clubs and festivals.
- Competitive DanceSport: International Standard and American Smooth tango heats under WDSF, WDC or NDCA rules.
- Stage choreography (tango escenario) in theatrical shows and tourist spectacles, often using vocabulary that is unsafe on a social floor.
- Teaching as a named couple-dance in studios worldwide, where Argentine social codes, ballroom syllabus and nuevo technique are frequently mixed without being labelled.
- Cataloguing and licensing of compositions and recordings under genre/style tags 'tango' in libraries, collecting societies and streaming services.
- Which of these real-world use hold for the sense of tango this model covers, and on what evidence? provenance
Typical measurements
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Meter (Argentine and Standard tango music) - 2/4 or 4/4; vals in the same social set is 3/4 and is not tango - time signature
- Tempo, International Standard tango (WDSF) - 31-33 - bars per minute (2/4)
- Tempo, Golden Age / social Argentine recordings - about 60-80 on the slow pulse (roughly 120-160 if counted in quavers); counting convention must be recorded - beats per minute
- Duration of a typical recorded tango - 2.5-3.5 - minutes
- Tanda length at a milonga - 3-4 recorded tangos, about 10-15 including the cortina - tracks; minutes
- Which of these typical measurements hold for the sense of tango this model covers, and on what evidence? provenance
Failure modes and hazards
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Floorcraft collisions and lower-limb injury when high boleos, ganchos or other escenario/nuevo vocabulary are used on a crowded ronda.
- Mis-labelling International Standard or American Smooth tango as Argentine tango in teaching, media and catalogue tags.
- Knee, ankle and lumbar overuse from close-embrace disassociation, especially on poor floors.
- Copyright clearance failures when DJs or shows use commercial recordings without licence.
- Social-floor protocol failures (blocking the line of dance, ignoring cabeceo) that cause conflict or exclusion.
- Hearing injury in amplified milongas and concerts.
- Which of these failure modes and hazards hold for the sense of tango this model covers, and on what evidence? provenance
Regional variation
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Buenos Aires and Montevideo share the origin but differ in orquesta repertoire, candombe influence (stronger on the Uruguayan shore) and local milonga codes.
- Finland maintains an independent tango song and couple-dance culture (including the Seinäjoki Tangomarkkinat) that is not Argentine vocabulary.
- Competitive ballroom tango is a worldwide DanceSport with a single Standard syllabus, practised alongside, and often confused with, local Argentine-tango scenes in Europe, North America and East Asia.
- Which of these regional variation hold for the sense of tango this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- milonga (music and dance) - Faster habanera-derived 2/4 with a different step vocabulary; danced in the same milonga event but not the same form as tango.
- vals criollo / tango vals - Triple meter (3/4); shares the social set and embrace but is classified separately from tango.
- International foxtrot - Continuous, swinging Standard dance versus tango's staccato, marked action and tango-specific promenade vocabulary.
- maxixe (historical 'Brazilian tango') - Brazilian urban couple dance of the same era; a title or nickname containing 'tango' does not make it Río de la Plata tango.
- paso doble - Latin DanceSport with Spanish march character and different hold and figure syllabus; not a tango despite being a dramatic couple dance.
- candombe - Afro-Uruguayan drumming and procession practice that influenced Río de la Plata popular music; it is not itself tango.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of tango this model covers, and on what evidence? provenance
Sources
- Tango. Representative List of the Intangible Cultural Heritage of Humanity - UNESCO's 2009 inscription of tango, jointly by Argentina and Uruguay, as a Río de la Plata music, dance and poetry practice rather than a ballroom syllabus.
- tango (Q338450) - Wikidata item used for tango as a music genre; a separate item Q143902 names the dance.
- WDSF Competition Rules (Standard dances) - International Standard tango as one of five Standard DanceSport dances, with prescribed meter and tempo distinct from Argentine social practice.
- Tango!: The Dance, the Song, the Story - Historical account of Río de la Plata origins, canyengue-to-salón development, orquesta typical, and the split between social, staged and exported ballroom forms. Thames and Hudson, 1995 (Collier, Cooper, Azzi, Martin).
What the second pass must settle
- Does vr.tr.tango denote the musical and dance form, or a different referent within INF.MED?
- Does an existing Vercy world model already own this concept, requiring the registry entry to link to it?
- Which tango traditions must this entry cover, and which distinctions can remain internal without changing registry granularity?
- Which sources and practitioner accounts can substantiate identification criteria and boundaries with milonga, vals and tango-inspired hybrids?
- How should conflicting assessments of tango identity or suitability be represented when traditions and use settings disagree?