KBatch · Album / Lyrics analysis

Chart Geometry · 1141 packs · 2015–2026

Title-path → shadows · strain/flow · BPM · MIDI · notation · steno · qbpm (music.clock → tool.kbatch → music.score) · Billboard year-end + top-ten + Global 200 + AU/KR · not bulk commercial lyrics · BMI / ASCAP links · MCP kbatch_chart_lookup · 25 capsules

BMI ↗ ASCAP ↗ qbpm ↗ live-charts ↗

PD · Staff Title-path BMI/ASCAP Staff cat Partner key · pending Staff lab → Rights JSON → Keys checklist → Track C →

BMI (Broadcast Music, Inc.) and ASCAP (American Society of Composers, Authors and Publishers) administer public-performance rights for most US chart works. KBatch is not affiliated with BMI or ASCAP — each track links to their official repertoire title search so you can verify writers/publishers. Mechanical, sync, and lyric display rights stay with copyright owners; only paste lyrics you own or have licensed into data/lyrics/billboard-2026/lyrics/{slug}.txt, then run npm run analyze:billboard-2026.

Geometric cover generates on analyze

Title · artist · metrics appear here

Title Artist Album Year Cover URL (optional) Layout

Art section uses generated geometry from path strain/efficiency when no cover URL — same spirit as blank geometric keyboard. blank → opens the track as a physical key path.

Lyrics

Use [Verse] / [Chorus] headers · ⌘/Ctrl+Enter to analyze

Line geometry

Per line: pattern flow · rhythm · pronunciation · word links (history / slang / etymology / new creation)

Keyboard pattern flow

Physical key board · direction arrows · DDR / arrow notation · cadence & strain · karaoke scrub · contrail heat as secondary underlay

Path idle · Analyze lyrics or pick a chart track

Scrub song path 0 / 0 · 0 ms

Citation · title-path packs are metadata-only · full lyrics need cited/{slug}.txt + .cite.json — docs

Arrows—

DDR—

Pattern—

Dirs—

Pattern flow = physical keys + direction arrows + DDR notation for the scrubbed line · faint underlay = full-song contrail · red heat = overlapped keys · alt boards lower stack strain.