Genre Breakdown — Spotify Global Top 200

Stream share by music genre, updated daily. Shows how listening is distributed across genre categories for the current day, with tools to explore individual artists and travel back through recent history.

How to use this chart

Bubble area (top)

Each bubble represents a genre; size encodes its share of total streams for the selected date.
Click a genre bubble to drill into it — the bubble expands to fill the area and artist sub-bubbles appear inside, sized by their contribution to that genre's streams.
Click an artist bubble to see a track-level breakdown: position, title, stream count, and daily change for every track that artist had charting on the selected date.
Click outside the expanded bubble (or use the ← button) to step back up a level.

Ridgeline plot (bottom)

Shows the stream-share trend for the top genres over time. Each ridge is one genre; vertical height encodes stream share.
Click anywhere on the ridgeline to jump to that date — the bubble chart and header date update instantly.
Hover to preview a date before committing; an amber cursor marks the currently selected date.

Data sources & processing

Stage	Source	Details
Charts	kworb.net	Scraped every six hours daily, starting 00:00 Oslo time; Spotify Global Top 200
Genre	Last.fm artist.getinfo	Top user-applied tag per artist, lower-cased
Storage	Supabase	Normalized into `tracks`, `artists`, `daily_charts` tables

Genre normalization — raw Last.fm tags are mapped to a smaller set of display genres (e.g. "uk hip hop", "rap", "trap" → "hip-hop/rap"). The top 10 genres by stream share are shown individually; everything else is grouped into Other.

Colour encoding — genres are ranked by their average stream share across all available dates and assigned a colour from the Plasma perceptual gradient (rank 1 = brightest). This keeps colours stable across dates so the same genre always appears in the same hue.

Interpretation notes

Stream share is each genre's streams divided by total streams in the Top 200 for that date — it reflects relative listening weight, not absolute volume.
Short-lived spikes in the ridgeline often correspond to a viral release or playlist push within a genre.
The Other bubble aggregates all genres outside the top 10 and is excluded from the ridgeline to keep it readable.
Genre attribution is at the artist level (not track level), so a track inherits the primary genre of its lead artist.

Genre Breakdown — Spotify Global Top 200

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