Material Detail

An open interactive research and teaching resource for examining how song-title novelty, reuse and diversity change over time. The resource covers 7,096,331 eligible catalog records and 6,168,623 first-observed artist–normalized-title associations from 1800 through the partial 2026 period. Learners can compare raw uniqueness measures with fixed-sample diversity, examine language-label aggregates, discuss normalization and measurement limitations, and download documented aggregate CSV and JSON files. Methodology, uncertainty intervals, a data dictionary and permanent dataset and preprint DOIs are provided. The public materials contain no lyrics, audio, personal data, source code or item-level catalog records.

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