In these genres the musicians are expected to be able to improvise the individual notes used for the chords (the ' voicing') and the appropriate ornamentation, counter melody or bassline. It is intended primarily for a rhythm section (usually consisting of piano, guitar, drums and bass). It is the most common form of notation used by professional session musicians playing jazz or popular music. Play ⓘĪ chord chart (or chart) is a form of musical notation that describes the basic harmonic and rhythmic information for a song or tune.
