{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.mouthpiece-q523753","code":"thing-q523753","url":"https://ver.cy/models/thing/q523753/","name":"mouthpiece","alternateNames":[],"kind":"thing","status":"research-draft","version":"0.1.0-research.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.OBJ"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A mouthpiece is a component designed to be held in or against the mouth to provide a functional interface with an instrument or device, commonly for directing airflow or transmitting sound.","purpose":"Enable an agent to identify a brass-instrument mouthpiece, assess its fit and condition, and determine appropriate selection, handling and care actions.","scope":{"in":["Lip-contact rim and internal cup geometry","Throat, backbore and air-path condition","Shank geometry and compatibility with the instrument receiver","One-piece and modular mouthpiece construction","Mouthpiece materials, surface finishes and maintenance constraints","Performance observations tied to a named player, instrument and test context"],"out":["Woodwind mouthpieces, reeds and reed ligatures","Diving, respiratory and dental mouthpieces","The complete brass instrument, including valves, slides and bell","The player's anatomy, medical condition and embouchure training","Manufacturer product-line management and individual-unit ownership histories"],"boundaries":[]},"distinguishingFeatures":["Provides a rim against which the player's lips vibrate, rather than carrying a reed as the sound-producing element.","Connects the lip-facing cavity through an internal passage to a brass instrument's air column.","Is the player-facing component; the instrument receiver accepts its shank and is a neighbouring component.","Serves musical excitation rather than breathing assistance, dental protection or speech representation."],"structure":{"bundles":[{"id":"identity-and-assembly","name":"Identity and assembly","description":"Establish what the mouthpiece is and which assembled components its description covers.","layers":[{"id":"brass-mouthpiece-boundary","name":"Brass mouthpiece boundary","description":"Recognise the lip-driven musical interface represented by this registry entry.","findings":[{"id":"excitation-interface","name":"Excitation interface","description":"Record evidence that the object connects vibrating lips to a brass instrument.","questions":[{"text":"What lip-contact cavity and instrument-facing passage establish this as a brass mouthpiece?","id":"excitation-interface-q01","kind":"definition"},{"text":"Does the object belong here, or to a reed mouthpiece, receiver or non-musical mouthpiece model?","id":"excitation-interface-q02","kind":"boundary"}]}]},{"id":"configuration-identification","name":"Configuration identification","description":"Resolve markings and component combinations into a traceable configuration.","findings":[{"id":"markings-and-components","name":"Markings and components","description":"Capture the maker's designation alongside the actual rim, cup and shank assembly.","questions":[{"text":"Which maker document explains the markings on this mouthpiece?","id":"markings-and-components-q01","kind":"provenance"},{"text":"Is it one piece, or which interchangeable components constitute the assembled mouthpiece?","id":"markings-and-components-q02","kind":"definition"},{"text":"Which modifications or substitutions make the original product specification insufficient?","id":"markings-and-components-q03","kind":"boundary"}]}]}]},{"id":"lip-contact-and-cup","name":"Lip contact and cup","description":"Describe the rim and cavity directly facing the player.","layers":[{"id":"rim-geometry","name":"Rim geometry","description":"Characterise the opening and lip-supporting contour.","findings":[{"id":"rim-dimensions-and-contour","name":"Rim dimensions and contour","description":"Record rim measurements with enough method detail to make comparisons interpretable.","questions":[{"text":"At which plane is the inner diameter measured, and what is its value in mm?","id":"rim-dimensions-and-contour-q01","kind":"measurement"},{"text":"What are the rim width, crown contour and inner-edge profile?","id":"rim-dimensions-and-contour-q02","kind":"measurement"}]}]},{"id":"cup-geometry","name":"Cup geometry","description":"Describe the cavity between the rim opening and throat.","findings":[{"id":"cup-profile-reference","name":"Cup profile reference","description":"Retain measured or documented geometry rather than relying only on depth labels.","questions":[{"text":"What reference points define the recorded cup depth?","id":"cup-profile-reference-q01","kind":"measurement"},{"text":"Which drawing, section or measurement describes the cup contour and transition into the throat?","id":"cup-profile-reference-q02","kind":"provenance"}]}]}]},{"id":"internal-air-path-and-response","name":"Internal air path and response","description":"Connect throat and backbore descriptions to contextual playing observations.","layers":[{"id":"throat-and-backbore","name":"Throat and backbore","description":"Characterise the passage downstream of the cup.","findings":[{"id":"bore-geometry","name":"Bore geometry","description":"Record the throat and backbore as distinct portions of the passage.","questions":[{"text":"What are the throat diameter and length in mm, and are they nominal or measured?","id":"bore-geometry-q01","kind":"measurement"},{"text":"What documented profile describes the backbore from the throat to the shank exit?","id":"bore-geometry-q02","kind":"measurement"}]}]},{"id":"contextual-playing-evaluation","name":"Contextual playing evaluation","description":"Record response observations under explicit test conditions.","findings":[{"id":"comparison-evidence","name":"Comparison evidence","description":"Separate reported resistance, articulation and tonal impressions from reproducible measurements.","questions":[{"text":"Which player, instrument, register, dynamic and comparison mouthpiece were used?","id":"comparison-evidence-q01","kind":"provenance"},{"text":"Which results are player reports, and which were measured with a stated method?","id":"comparison-evidence-q02","kind":"measurement"},{"text":"What additional playing trial is needed before recommending this mouthpiece for the intended use?","id":"comparison-evidence-q03","kind":"action"}]}]}]},{"id":"receiver-and-modular-fit","name":"Receiver and modular fit","description":"Assess the mechanical interfaces joining the mouthpiece to the instrument and to its own components.","layers":[{"id":"shank-receiver-interface","name":"Shank-receiver interface","description":"Evaluate shank geometry against the intended receiver.","findings":[{"id":"seating-evidence","name":"Seating evidence","description":"Record dimensional compatibility and observed seating without prescribing a universal insertion depth.","questions":[{"text":"Which receiver specification is intended, and what evidence supports the match?","id":"seating-evidence-q01","kind":"provenance"},{"text":"What insertion depth and contact pattern are observed, and is there rocking or premature bottoming?","id":"seating-evidence-q02","kind":"measurement"},{"text":"Do the observed fit and manufacturer guidance support use, an approved adapter or repair assessment?","id":"seating-evidence-q03","kind":"action"}]}]},{"id":"interchangeable-component-interfaces","name":"Interchangeable component interfaces","description":"Check joint compatibility where the mouthpiece has removable parts.","findings":[{"id":"modular-joint-integrity","name":"Modular joint integrity","description":"Record whether fitted components form the intended secure assembly.","questions":[{"text":"Which rim, cup and shank combinations does the maker document as compatible?","id":"modular-joint-integrity-q01","kind":"provenance"},{"text":"Are the joints fully seated and free from looseness, damaged threads or unintended internal discontinuities?","id":"modular-joint-integrity-q02","kind":"measurement"}]}]}]},{"id":"contact-surfaces-and-care","name":"Contact surfaces and care","description":"Assess the materials, cleanliness and defects relevant to continued mouthpiece use.","layers":[{"id":"material-and-finish-condition","name":"Material and finish condition","description":"Identify exposed materials and inspect the rim, cup and shank surfaces.","findings":[{"id":"surface-integrity","name":"Surface integrity","description":"Record contact-surface damage and deformation separately from cosmetic variation.","questions":[{"text":"What evidence identifies the substrate, finish and any material exposed through worn coating?","id":"surface-integrity-q01","kind":"provenance"},{"text":"Where are burrs, roughness, cracks, coating loss or shank deformation present?","id":"surface-integrity-q02","kind":"measurement"},{"text":"Which observed defects require withdrawal from use or professional assessment under documented guidance?","id":"surface-integrity-q03","kind":"action"}]}]},{"id":"cleaning-and-service-actions","name":"Cleaning and service actions","description":"Choose care actions appropriate to the mouthpiece material, construction and condition.","findings":[{"id":"cleaning-and-clearance","name":"Cleaning and clearance","description":"Record passage cleanliness and the basis for cleaning or repair decisions.","questions":[{"text":"Are deposits or obstructions visible in the cup, throat, backbore or modular joints?","id":"cleaning-and-clearance-q01","kind":"measurement"},{"text":"Which manufacturer instructions specify compatible cleaning agents, tools and treatment limits?","id":"cleaning-and-clearance-q02","kind":"provenance"},{"text":"Can the issue be resolved by documented routine care, or does a stuck shank, damaged bore or failed joint need specialist service?","id":"cleaning-and-clearance-q03","kind":"action"}]}]}]},{"id":"evidence-and-external-alignment","name":"Evidence and external alignment","description":"What the world already says about this thing, gathered so the model can be checked against it.","layers":[{"id":"reported-evidence","name":"Reported evidence","description":"Findings from the breadth pass, kept separate from the structural claims.","findings":[{"id":"evidence-confidence-notes","name":"Check these first","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these check these first hold for the sense of mouthpiece this model covers, and on what evidence?","id":"evidence-confidence-notes-q01","kind":"provenance"}]},{"id":"evidence-kinds","name":"Kinds and varieties","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these kinds and varieties hold for the sense of mouthpiece this model covers, and on what evidence?","id":"evidence-kinds-q01","kind":"provenance"}]},{"id":"evidence-real-world-use","name":"Real-world use","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these real-world use hold for the sense of mouthpiece this model covers, and on what evidence?","id":"evidence-real-world-use-q01","kind":"provenance"}]},{"id":"evidence-failure-modes-and-hazards","name":"Failure modes and hazards","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these failure modes and hazards hold for the sense of mouthpiece this model covers, and on what evidence?","id":"evidence-failure-modes-and-hazards-q01","kind":"provenance"}]},{"id":"evidence-neighbours","name":"Neighbouring kinds and how to tell them apart","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these neighbouring kinds and how to tell them apart hold for the sense of mouthpiece this model covers, and on what evidence?","id":"evidence-neighbours-q01","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Clean and inspect a mouthpiece for cracks or wear and report its condition.","Match a mouthpiece to the instrument or device it is designed for."],"mustNot":["Pass a mouthpiece from one person to another without cleaning and disinfecting it.","Fit a damaged mouthpiece to breathing or diving equipment.","Collect breath samples through a mouthpiece without the person's consent or lawful authority."],"requiresHuman":["Fitting or replacing a mouthpiece on life-support, diving or medical breathing equipment."]},"ethics":{"considerations":["Shared mouthpieces can spread infection.","Faults in breathing mouthpieces can put lives at risk."],"affectedParties":["Musicians and device users","Divers and patients","Shared-equipment users"]},"owners":{"steward":"The person who uses it or the organization that issues the equipment.","roles":[],"masterSystems":[]},"relations":[{"target":"Q26823384","type":"parent","note":"registry parent class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.mouthpiece-q523753","Wikidata: Q523753 (https://www.wikidata.org/wiki/Q523753)"]},"properties":{"applicability":"required","items":["Intended instrument and receiver: Instrument family and documented receiver specification","Rim inner diameter: mm, with measurement plane and method","Rim contact profile: Documented contour, width and inner-edge profile","Cup geometry: Depth in mm and dimensioned internal profile","Throat diameter: mm, with nominal or measured status","Backbore profile: Internal diameter in mm against axial position in mm, or referenced drawing","Shank interface geometry: Diameters and length in mm; taper with explicit convention","Construction configuration: One-piece; modular rim, cup or shank; other documented configuration","Base material and contact finish: Documented substrate, coating and exposed lip-contact material; unknown","Service condition: Unchecked; serviceable; cleaning required; repair assessment required; withdrawn from use"]},"recognition":{"applicability":"required","items":["A shaped piece of metal, plastic, rubber or wood held in or against the lips.","Fits onto an instrument, breathing device or telephone handset."]},"capabilities":{"applicability":"required","items":["Identify the brass mouthpiece and its intended instrument interface.","Compare measured rim, cup and bore geometry using compatible measurement conventions.","Check receiver seating and modular-component compatibility.","Record controlled playing comparisons without treating preference as universal performance.","Inspect and clean accessible contact surfaces and internal passages using documented care guidance.","Refer damaged, stuck or altered mouthpieces for appropriate repair assessment."]},"hazards":{"applicability":"required","items":["Cracked or detached mouthpieces can be inhaled or cause loss of air supply.","Unhygienic mouthpieces spread infection."]},"interfaces":{"applicability":"not-applicable","items":[]},"context":{"applicability":"required","items":["A brass instrument mouthpiece rests against the player's lips and connects to the instrument's mouthpiece receiver.","It couples lip vibration and airflow to the instrument during practice and performance.","Players select mouthpieces for compatibility, comfort and the desired playing response."]}},"sources":[{"title":"Wikidata item Q523753: mouthpiece","url":"https://www.wikidata.org/wiki/Q523753","note":"identity and sense of the item"},{"title":"Wikipedia: Mouthpiece (brass)","url":"https://en.wikipedia.org/wiki/Mouthpiece_%28brass%29","note":"general description of the item"}],"openQuestions":["Does an existing Vercy world model already cover brass mouthpieces, requiring this registry entry to link to it?","Which manufacturer or standards-body documents establish receiver tapers, shank tolerances and accepted measurement conventions across instrument families?","Which instrument-specific dimensional ranges can be supported by comparable measurements rather than inconsistent catalogue labels?","Which controlled evidence supports relationships between mouthpiece geometry and playing response, and how strongly do those relationships depend on player and instrument?","Which material-specific care instructions and defect criteria justify cleaning, repair or withdrawal from use, particularly for coated and modular mouthpieces?"],"resources":{"spec":"/models/things/publications/thing-q523753/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q523753/spec.json"],"providers":["Codex"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T11:25:18Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"not-applicable","interaction.context":"filled","sources":"filled"},"notes":{"interaction.interfaces":"No universal technical standard or official classification is identified here for brass instrument mouthpieces independently of their materials and market jurisdiction."},"score":1.0}}