{"id":9771,"slug":"african-chart-reappearance-leave-one-out-16aug-10nov-2026","title":"African chart new-entry flags that are records returning, recomputed with each feed and each large market removed, 16 August to 10 November 2026","source":"This desk's own afw_chart_snapshot and afw_chart_entry collection of published daily African charts","source_url":"","source_type":"computed","method":"Population is every row the desk collected from a published daily African chart on seven fixed-length feeds between 2026-08-16 and 2026-11-10: Apple Music songs, albums and music videos, Deezer songs, Shazam songs, Spotify songs and YouTube songs, across 42 African markets, 85 chart dates carrying a movement flag. Two feeds held by the desk are excluded and the exclusions matter: afw\/composite is built from the other feeds and would double count, and itunes\/songs publishes a chart whose length varies between 47 and 99 slots, so a record's absence there cannot be distinguished from the chart being shorter that day. The seven feeds retained publish a fixed slot count (20, 99 to 100, or 200) and are near-complete in collection, so absence from a collected chart is a real absence. A row is counted as a new-entry flag where the collector recorded status 'new', meaning the record was not present in the immediately preceding collected snapshot of that same market and feed. Each new-entry flag is then classed as a reappearance if that same record identifier had already been observed on that same market and feed on an earlier date in the window, and as first-time if it had not. The first collected date for each chart carries no movement flag, because there is no prior snapshot to compare against, which is why 85 dates carry flags and 86 were collected. Reappearance counts are a lower bound and first-time counts an upper bound: a record that charted before 2026-08-16 and returned during the window is counted as first-time, because the desk has no observation of its earlier run. Records are matched on the feed's own stable record identifier, not on title text. Each row drops one feed or one market entirely and recomputes the pooled share from the remaining integer counts. The final row is the strictest test available: it keeps only those new-entry flags where the desk collected that same chart on the immediately preceding calendar day, so no flag in it can be caused by a gap in collection. The final three rows reverse the two exclusions, so a reader can see the direction and size of that editorial choice rather than only its justification. Reversing them does not change the sign of the finding but does lower it.","unit":"","license":"Afrobeats Wire's compilation and analysis are licensed CC BY 4.0. Rights in the underlying source data remain with the source named above.","confidence":"high","retrieved":"2026-11-10 14:04:46","n":18,"first_party":0,"columns":[{"key":"scenario","label":"Scenario","type":"text"},{"key":"new_flags","label":"New-entry flags","type":"number"},{"key":"reappearances","label":"Records returning","type":"number"},{"key":"reappear_pct","label":"Returning, % of new-entry flags","type":"number"}],"rows":[{"scenario":"All seven feeds, all 42 markets (published finding)","new_flags":337686,"reappearances":191632,"reappear_pct":56.7},{"scenario":"Without Apple Music albums","new_flags":259775,"reappearances":142265,"reappear_pct":54.8},{"scenario":"Without Apple Music music videos","new_flags":207459,"reappearances":117216,"reappear_pct":56.5},{"scenario":"Without Apple Music songs","new_flags":278056,"reappearances":156326,"reappear_pct":56.2},{"scenario":"Without Deezer songs","new_flags":289611,"reappearances":168838,"reappear_pct":58.3},{"scenario":"Without Shazam songs","new_flags":323661,"reappearances":187107,"reappear_pct":57.8},{"scenario":"Without Spotify songs","new_flags":332695,"reappearances":187795,"reappear_pct":56.4},{"scenario":"Without YouTube songs","new_flags":334859,"reappearances":190245,"reappear_pct":56.8},{"scenario":"Without Tunisia","new_flags":321433,"reappearances":184746,"reappear_pct":57.5},{"scenario":"Without Algeria","new_flags":321509,"reappearances":183787,"reappear_pct":57.2},{"scenario":"Without Morocco","new_flags":322118,"reappearances":182981,"reappear_pct":56.8},{"scenario":"Without Kenya","new_flags":323681,"reappearances":185323,"reappear_pct":57.3},{"scenario":"Without Senegal","new_flags":325516,"reappearances":185133,"reappear_pct":56.9},{"scenario":"Without the five largest markets","new_flags":263513,"reappearances":155442,"reappear_pct":59},{"scenario":"Only flags where the previous collected day was yesterday","new_flags":295951,"reappearances":165235,"reappear_pct":55.8},{"scenario":"Adding back the excluded iTunes songs feed","new_flags":365263,"reappearances":198882,"reappear_pct":54.4},{"scenario":"Adding back the excluded composite feed","new_flags":409345,"reappearances":234371,"reappear_pct":57.3},{"scenario":"All nine feeds, both exclusions reversed","new_flags":436922,"reappearances":241621,"reappear_pct":55.3}]}