InsightsChord Coverage
Chord Coverage
Every recurring chord progression plotted by length and catalog coverage. Each dot is one pattern at degree (key-independent), shape (transposed to a common root), or literal (exact chords) level. Click any dot to open its tag page. Denominator is 217 songs with chord data.
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Show2816 patterns, denominator 217 songs
Each dot is one chord progression. Position = progression length × catalog coverage. Bubble size = song count. Top-right = long progressions that recur widely (rare – usually well-trodden patterns like I-V-vi-IV). Top-left = short progressions that show up everywhere. Bottom-right = long progressions unique to a few songs (harmonically distinctive).