{ "model": { "rank": 12497, "code": "thing-q654693", "model_id": "vr.tr.beat", "name": "beat", "purpose": "Let an agent handle musical beat by metre, tempo, feel and notation, and separate other senses of beat.", "family": "Thing Registry", "category": "Activities and processes", "status": "research-draft", "kind": "thing", "plane": "ACT", "domain": "ACT.EVT", "industry": "", "version": "", "url": "/models/thing/q654693/", "tier": 2, "score": 39, "payload": { "layer": "wikidata", "aliases": [ "four on the floor", "Laid Back", "on-beat", "off-beat", "strong beat", "double offbeat", "double-time", "Herrena", "Ttakuna" ], "aliasCount": 9, "merged": 10, "knownIn": 39, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.beat", "source": { "dataset": "wikidata", "item": "Q654693", "url": "https://www.wikidata.org/wiki/Q654693", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T09:48:36Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 1, "engine": "claude" }, "metaModel": { "id": "THING-Q654693", "registryId": "vr.tr.beat", "name": "beat", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "ACT.EVT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q654693/", "model": { "registry_id": "vr.tr.beat", "name": "beat", "purpose": "Let an agent handle musical beat by metre, tempo, feel and notation, and separate other senses of beat.", "definition": "The basic unit of time in music, the regular pulse that listeners tap along to, organised into bars by metre; related concepts include downbeat, upbeat, on-beat and off-beat, and tempo measured in beats per minute.", "what_it_is_for": "Keeping time and structuring rhythm.", "affordances": [ "find the tempo of a piece", "identify metre and strong beats", "explain on-beat and off-beat feels", "practise with a metronome" ], "distinguishing_features": [ "Regular pulse", "Grouped by metre", "Strong and weak beats", "Basis of dance and ensemble timing" ], "appearance": "Heard as a pulse; shown in notation by time signatures and note values.", "visual_identification": [ "Time signatures such as 4/4", "Tempo marks in BPM", "A beat in physics or policing is a different sense" ], "physical_properties": [ { "quantity": "typical tempo", "typical_range": "about 60-180", "unit": "BPM", "note": "common range" } ], "families_and_kinds": [ "downbeat", "upbeat", "backbeat and off-beat", "four on the floor", "swung and straight beats" ], "related_models": [ { "relation": "is a kind of", "target": "rhythm and musical parameter", "why": "category" }, { "relation": "is measured as", "target": "tempo", "why": "rate" }, { "relation": "is organised by", "target": "metre", "why": "structure" }, { "relation": "is kept with", "target": "metronome", "why": "tool" } ], "identifiers": [], "standards_and_regulation": [], "failure_modes_and_hazards": [ "Confusing beat with rhythm", "Confusing senses" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "pulse", "name": "Pulse", "description": "The beat.", "rationale": "Tempo and metre.", "layers": [ { "id": "tempo", "name": "Tempo", "description": "BPM.", "findings": [ { "id": "tempo-finding", "name": "Tempo", "description": "Tempo.", "questions": [ { "text": "What is the tempo in beats per minute?", "kind": "measurement" }, { "text": "Does it change during the piece?", "kind": "boundary" } ] } ] }, { "id": "metre", "name": "Metre", "description": "Time signature.", "findings": [ { "id": "metre-finding", "name": "Metre", "description": "Metre.", "questions": [ { "text": "What is the metre and which beats are strong?", "kind": "definition" }, { "text": "How is it notated?", "kind": "definition" } ] } ] } ] }, { "id": "feel", "name": "Feel", "description": "Groove.", "rationale": "Feel shapes style.", "layers": [ { "id": "offbeat", "name": "Off-beat", "description": "Accents.", "findings": [ { "id": "offbeat-finding", "name": "Off-beat", "description": "Accents.", "questions": [ { "text": "Are accents on or off the beat?", "kind": "definition" }, { "text": "Which styles use this feel?", "kind": "definition" } ] } ] }, { "id": "swing", "name": "Swing", "description": "Straight or swung.", "findings": [ { "id": "swing-finding", "name": "Swing", "description": "Swing.", "questions": [ { "text": "Is the beat played straight or swung?", "kind": "definition" }, { "text": "How much swing?", "kind": "measurement" } ] } ] } ] }, { "id": "practice", "name": "Practice", "description": "Timing.", "rationale": "Timing is trained.", "layers": [ { "id": "metronome", "name": "Metronome", "description": "Tool.", "findings": [ { "id": "metronome-finding", "name": "Metronome", "description": "Metronome.", "questions": [ { "text": "How can a metronome be used to practise this passage?", "kind": "action" }, { "text": "At what starting tempo?", "kind": "measurement" } ] } ] }, { "id": "ensemble", "name": "Ensemble", "description": "Playing together.", "findings": [ { "id": "ensemble-finding", "name": "Ensemble", "description": "Ensemble timing.", "questions": [ { "text": "How can an ensemble lock to the beat?", "kind": "action" }, { "text": "Who sets the tempo?", "kind": "definition" } ] } ] } ] }, { "id": "senses", "name": "Senses", "description": "Disambiguation.", "rationale": "Beat has many senses.", "layers": [ { "id": "physics", "name": "Physics", "description": "Beat frequency.", "findings": [ { "id": "physics-finding", "name": "Physics", "description": "Physics sense.", "questions": [ { "text": "Is a beat frequency between two tones meant?", "kind": "boundary" }, { "text": "Which entry fits?", "kind": "action" } ] } ] }, { "id": "other", "name": "Other", "description": "Heartbeat, patrol.", "findings": [ { "id": "other-finding", "name": "Other", "description": "Other senses.", "questions": [ { "text": "Is a heartbeat or a police beat meant?", "kind": "boundary" }, { "text": "Which entry fits?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should beat types be separate entries?", "How should tempo data be linked?", "How should other senses be split off?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "event or period", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a beat, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent handle musical beat by metre, tempo, feel and notation, and separate other senses of beat.", "characteristics": { "substance": "activity", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: four on the floor, Laid Back, on-beat, off-beat, strong beat, double offbeat, double-time, Herrena, Ttakuna.", "10 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 39 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a beat, and on what evidence are they told apart?" ], "whatItIsMadeOf": "something that happens over time", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Not a thing to see. Recognised by when it happened and who was involved, on the account of somebody." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "four on the floor", "Laid Back", "on-beat", "off-beat", "strong beat", "double offbeat", "double-time", "Herrena", "Ttakuna" ] } ], "standing": "Described in 39 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 10 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one beat from another, and a beat from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a beat, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a beat, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a beat is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a beat, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a beat, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a beat is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a beat sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a beat, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a beat, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a beat is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a beat from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a beat, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a beat, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a beat is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a beat passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a beat between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a beat, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a beat, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a beat is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a beat, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a beat is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a beat, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a beat, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a beat is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "process-and-outcome", "name": "Process, inputs and outcome", "description": "How a beat proceeds, what it needs and what it leaves behind.", "rationale": "An activity is known by its steps and its results, and both have to be recordable while it is still running.", "layers": [ { "id": "steps-and-sequence", "name": "Steps and sequence", "description": "The steps of a beat, their order and what may run in parallel.", "findings": [ { "id": "steps-and-preconditions", "name": "Steps, preconditions and completion", "description": "What has to be true before each step of a beat and what marks it done.", "questions": [ { "id": "steps-and-preconditions-q01", "text": "What identifies and describes a step of a beat, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "steps-and-preconditions-q02", "text": "Who or what asserted this about a step of a beat, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "steps-and-preconditions-q03", "text": "What may an agent decide or do once a step of a beat is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "inputs-and-results", "name": "Inputs, resources and results", "description": "What a beat consumes and what it produces.", "findings": [ { "id": "inputs-and-outputs", "name": "Inputs, outputs and side effects", "description": "The resources a beat takes and the results it leaves, wanted or not.", "questions": [ { "id": "inputs-and-outputs-q01", "text": "What identifies and describes the inputs and results of a beat, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "inputs-and-outputs-q02", "text": "Who or what asserted this about the inputs and results of a beat, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "inputs-and-outputs-q03", "text": "What may an agent decide or do once the inputs and results of a beat is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "extent-and-dating", "name": "Temporal extent and dating", "description": "When beat began and ended, and who says so.", "rationale": "Dates for events are conventions held by historiographies that disagree, and a single confident date hides the disagreement.", "layers": [ { "id": "dating", "name": "Dating and calendar", "description": "Start, end, granularity and the calendar used.", "findings": [ { "id": "date-record", "name": "Dates, granularity and authority", "description": "What is dated, how precisely, and on whose account.", "questions": [ { "id": "date-record-q01", "text": "What start and end are conventionally given for beat, at what granularity, in which calendar?", "kind": "definition" }, { "id": "date-record-q02", "text": "Which accounts date it differently, and on what grounds?", "kind": "provenance" } ] } ] }, { "id": "membership-of-the-event", "name": "What counts as part of it", "description": "Sub-events included or excluded, and by whom.", "findings": [ { "id": "inclusion", "name": "Inclusion and exclusion", "description": "The episodes treated as inside the event and those left out.", "questions": [ { "id": "inclusion-q01", "text": "Which episodes are counted as part of beat, and which are treated as separate?", "kind": "boundary" }, { "id": "inclusion-q02", "text": "Whose framing is being followed in that inclusion, and who frames it otherwise?", "kind": "provenance" } ] } ] } ] }, { "id": "participants-and-consequence", "name": "Participants, causes and consequences", "description": "Who took part in beat and what is claimed to follow from it.", "rationale": "Causation around events is asserted rather than observed, so each claim needs the party asserting it.", "layers": [ { "id": "participants", "name": "Participants and roles", "description": "Parties involved and what each did.", "findings": [ { "id": "participant-record", "name": "Parties and their roles", "description": "Who is recorded as involved and in what capacity.", "questions": [ { "id": "participant-record-q01", "text": "Which parties took part in beat, in what roles, and on whose account?", "kind": "provenance" }, { "id": "participant-record-q02", "text": "Where do accounts disagree about who was involved?", "kind": "boundary" } ] } ] }, { "id": "consequences", "name": "Causes and consequences", "description": "What is claimed to have caused it and followed from it.", "findings": [ { "id": "causal-claims", "name": "Causal claims and who makes them", "description": "Antecedents and outcomes as attributed claims.", "questions": [ { "id": "causal-claims-q01", "text": "What causes and consequences are attributed to beat, and by whom?", "kind": "provenance" }, { "id": "causal-claims-q02", "text": "What would an agent need before treating such a claim as settled rather than contested?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a beat came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a beat and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a beat, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a beat, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a beat is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a beat is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a beat, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a beat, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a beat is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 6, "layers": 12, "findings": 14, "questions": 38 } } } }