: An aggregate count of the piece's appearances in popular media (like films or YouTube tutorials) relative to its publication date.
For this specific musical entity, deep features might include: johann_sebastian_bach_toccata_fugue_in_dm_by_si...
Rather than looking at just raw data (like the title or artist), DFS creates features by following relationships across related data tables—such as composer history, genre characteristics, or performance metadata—and applying mathematical aggregations (e.g., counts, averages, or standard deviations). : An aggregate count of the piece's appearances