This diagram reconstructs the intended data-to-policy pipeline of the Open Music Europe project, based on project documentation, WP planning notes, PMB reviews, and the Grant Agreement. It visualises how Work Packages WP1–WP6 were meant to interact to produce a complete and reproducible evidence pipeline culminating in the Open Music Observatory (OMO). The workflow is divided into four major phases: Data Governance and Planning (WP6, WP1–WP3) Creation of the Data Management Plan (DMP), including licensing, GDPR compliance, data-protection measures, and machine-/human-readable metadata. Indicator and methodology design across the thematic WPs. Transparency and quality-control processes aligned with Open Policy Analysis (OPA). Reproducible Data Collection (WP1–WP4) Deployment of collection software (eurostat, retroharmonize, spotifyr, custom WP4 modules). Sampling-frame design (e.g., WP1 business register, KULT alignment). Questionnaire design drawing on WP1–WP3 indicator needs. Execution of surveys (personal, MSME) and automated collections. Curation, Harmonisation, and Processing (WP4) Ingestion, cleaning, and reconciliation of administrative, survey, statistical, and platform data. Preparation of analysis-ready datasets for WP1–WP3 pilots (valuation, diversity, ESG, etc.). Dissemination and Policy Translation (WP5) Technical design and deployment of the Open Music Observatory. Ingestion of validated datasets and publication of yearbooks (2023–2025). Policy-analysis pilots. Dissemination to OpenAIRE, EU Open Data Portal, Wikidata, Europeana, ECCCH, streaming platforms.