CHORDCHART
Chord chart
A chord chart is a form of musical notation that describes harmonic and rhythmic information. It is the most common form of notation used by professional session musicians playing jazz or popular music. It is intended primarily for a rhythm section . In these genres the musicians are expected to be able to improvise the actual notes used to represent the chord and the appropriate ornamentation or counter melody.The above text is a snippet from Wikipedia: Chord chart
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