{"schema_version":1,"assessment_id":"eoa_inverse_innovation_exp03_opportunity320_20260801","source_experiment_id":"eoa_inverse_innovation_exp03_full320_20260801","cell_id":"computability_boundary_mapping__music_musicology","archetype_slug":"computability_boundary_mapping","domain_slug":"music_musicology","title":"Guarantee-Aware Motif Reachability for Executable Generative Scores","opportunity_summary":"Evaluate a service architecture that admits executable scores to an enforceable terminating fragment for exact motif-reachability decisions and routes other scores to explicitly labeled sound-abstraction, witnessed-YES, or bounded-UNKNOWN results. The opportunity is conditional on proving that the declared unrestricted language supports an answer-preserving halting reduction and on certifying the restricted analyzer; the packet supplies neither external demand evidence nor prior-art evidence.","adopter_authorizer":"The analysis-service owner can authorize an offline evaluation and define supported syntax, guarantees, routing, and result labels; score authors retain authority over their works and intended musical meaning.","scores":{"meaningful_impact":{"score":3,"rationale":"Avoiding false absence verdicts, hanging jobs, misleading catalog records, and investment in an impossible analyzer could matter, but the packet does not establish how often unrestricted eventual-reachability promises or timeout-as-NO failures occur."},"stakeholder_pull":{"score":2,"rationale":"Composers, engineers, cataloguers, performers, and catalogue users are identifiable, but the sealed candidate provides no evidence that any of them currently seek this guarantee architecture or experience the stated failure at material frequency."},"incremental_advantage":{"score":4,"rationale":"Relative to timeout-as-NO and fixed-horizon simulation, enforceable exact fragments plus labeled fallbacks directly preserve the distinction among eventual reachability, bounded observation, and unknown status. The advantage remains conditional on labels surviving downstream and the fragment covering useful scores."},"distinctiveness_plausibility":{"score":2,"rationale":"The combination is coherently specified, but prior art is explicitly unsearched and the packet gives no basis for distinguishing it from existing verification, static-analysis, or bounded-model-checking practices for generative systems."},"technical_implementability":{"score":3,"rationale":"An offline corpus, membership checker, restricted analyzer, router, and versioned records are technically bounded components, but the score language, interpreter semantics, reduction, fragment grammar, correctness proof, and termination proof are absent."},"adoption_authority_feasibility":{"score":5,"rationale":"The analysis-service owner has explicit authority to constrain supported syntax and product guarantees, the first step is offline, author authority over musical meaning is preserved, and halt and rollback conditions are stated."},"evidence_readiness":{"score":2,"rationale":"The proposal includes comparisons, falsifiers, negative cases, and safe test categories, but its central expressiveness and answer-preservation claims lack the formal artifacts needed even for independent checking."},"safety_net_benefit":{"score":4,"rationale":"Labeled UNKNOWN, witnessed-YES, bounded results, manual review, versioned guarantees, recheck triggers, and rollback offer a strong safety net against false universal claims, provided downstream systems preserve the labels."},"scalability":{"score":3,"rationale":"Mechanical fragment checking and routing could scale within a fixed language and service, but heterogeneous score languages, evolving interpreters, abstraction false alarms, proof maintenance, and potentially restrictive fragments limit demonstrated generalizability."}},"score_confidence":"MODERATE","costs":{"first_evidence":{"band_2026_usd":"50K_TO_250K","scope":"Fix one score language and interpreter semantics; construct and independently check the source-to-score reduction and reachability biconditional; specify a candidate decidable fragment; implement a small offline checker/analyzer/router; and compare exact, bounded-simulation, abstraction, and labeled-UNKNOWN behavior on synthetic cases.","confidence":"LOW","assumptions":["One existing language and interpreter can be selected without licensing or access barriers.","The work requires specialist formal-methods and generative-music engineering labor.","The comparison remains offline and uses synthetic score-event pairs.","This band does not include production integration or a broad prior-art review."]},"initial_deployment_startup":{"band_2026_usd":"250K_TO_1M","scope":"Productionize a versioned fragment grammar, mechanical membership checker, terminating analyzer, fallback router, guarantee records, recheck triggers, audit tests, and interfaces that preserve result labels.","confidence":"LOW","assumptions":["Formal feasibility is established before deployment work starts.","Deployment targets one analysis service and one declared score language.","Existing playback, catalog, and job-management systems require integration changes.","Security, compliance, and author-governance review are included but no specialized hardware is required."]},"operational_launch":{"band_2026_usd":"50K_TO_250K","scope":"Run a controlled shadow launch, validate downstream label preservation, train reviewers, document guarantees and exclusions, execute rollback drills, and evaluate errors against the existing timeout or bounded-horizon process before publishing verdicts.","confidence":"LOW","assumptions":["The launch remains limited to one service and a bounded partner cohort.","No catalog verdict is published until acceptance criteria are met.","Evaluation includes independently reviewed adversarial and out-of-fragment cases.","Major interpreter redesign is excluded."]},"annual_recurring":{"band_2026_usd":"50K_TO_250K","scope":"Maintain the fragment, proofs, analyzers, abstraction rules, test corpus, versioned records, monitoring, manual-review queue, and rechecks after interpreter or language changes.","confidence":"LOW","assumptions":["One principal score language is supported.","UNKNOWN and abstraction volumes remain manageable for a small specialist review function.","Material semantic changes trigger recertification rather than silent reuse of old guarantees.","The packet provides no workload or service-scale evidence."]}},"research_burden":"HIGH","earliest_credible_horizon":"3_TO_12_MONTHS","pipeline_gates":{"recognizable_externally_supportable_problem":{"status":"YES","reason":"Timeout being converted to absence, unsupported universal termination promises, hanging analysis jobs, and mislabeled result guarantees are observable operational failures, although their prevalence is unmeasured."},"identifiable_adopter_or_authorizer":{"status":"YES","reason":"The analysis-service owner is explicitly identified as able to define supported syntax, guarantees, routing, and offline evaluation, while score authors retain authority over meaning."},"distinct_testable_incremental_claim":{"status":"YES","reason":"The proposal makes a testable claim that an enforceable fragment can return exact terminating answers while labeled fallbacks avoid converting timeout or bounded non-observation into NO, directly contrasting with the stated baseline and bounded-horizon rival."},"bounded_next_evidence_step":{"status":"YES","reason":"A one-language offline test can compare the proposed checker and router against timeout-as-NO and fixed-horizon simulation, with failed reduction preservation, any wrong exact answer, checker rejection, or lost UNKNOWN labels as falsifiers."},"no_unresolved_safety_or_authority_stop":{"status":"YES","reason":"The authorized first step is synthetic and offline, publishes no catalog verdicts, preserves author authority, excludes aesthetic claims and UNKNOWN-to-NO conversion, and has explicit halt and rollback rules."},"implementation_cost_scope_and_range":{"status":"UNCERTAIN","reason":"A bounded formal prototype can be scoped, but the unnamed language, missing fragment grammar, unknown proof difficulty, integration surface, and unmeasured review workload prevent a well-supported implementation range from the sealed packet."}},"blocking_evidence":["A fixed executable-score language and precise interpreter and event semantics.","A total computable source-to-score construction with an independently checked proof that source halting is equivalent to emission of the target encoded event.","Evidence that the actual claimed input class is not already finite, bounded, finite-state, or governed by a known total interpreter.","A versioned restricted-fragment grammar, mechanical membership checker, exact analyzer, and correctness and termination proofs.","Offline evidence that downstream interfaces preserve UNKNOWN, bounded-horizon, abstraction, and witnessed-YES labels without laundering them into universal verdicts.","Evidence that the fragment admits musically useful scores and that abstraction or manual-review burdens are operationally tolerable."],"next_evidence_step":"Select one declared score language and freeze its interpreter and event semantics; offline, build a small reduction-gadget suite and candidate fragment checker, then independently compare the proposed exact-plus-labeled-fallback pipeline with timeout-as-NO and fixed-horizon exhaustive simulation on terminating, looping, out-of-fragment, abstraction, and reduction cases. Stop if the reachability biconditional cannot be checked, any admitted exact case is wrong or nonterminating, or any downstream representation converts UNKNOWN or bounded non-observation to NO.","research_questions":["Can the selected score language and interpreter encode arbitrary source computation through a total computable translation?","Does the translation preserve the biconditional between source halting and emission of the specified formal event?","Is the actual product input class already bounded, finite-state, or total, making complexity rather than undecidability the relevant boundary?","What enforceable grammar yields a useful exact fragment with mechanically checked membership, correctness, and termination?","How much musically important generative practice would the restricted fragment exclude?","Which sound abstractions provide useful results without excessive false alarms or reviewer burden?","Can every downstream catalog, interface, and export preserve guarantee version, horizon, and UNKNOWN labels?","After contracts are fixed, how does the proposal compare with existing practice and prior art?"],"recommendation":"PARTNERED_RESEARCH","uncertainty_constraints":["All claims about unrestricted-language expressiveness and the halting-preserving translation remain hypotheses.","Problem prevalence, stakeholder demand, workload, market size, and realized impact are unmeasured.","Prior art and world-level distinctiveness are unsearched.","Formal event equality does not establish perceptual, aesthetic, cultural, or author-intended motif identity.","Cost bands are resource-equivalent planning ranges based on assumed scope, not observed implementation data.","The 3-to-12-month horizon concerns first credible formal and offline evidence, not production deployment."],"closed_book_prior_art_boundary":"No conclusion is drawn about novelty, prevalence, existing generative-music verification systems, or realized impact. Prior-art research should begin only after the score language, interpreter semantics, event property, guarantee classes, and proposed fragment are fixed."}