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In jazz chords and theory, most triads that appear in lead sheets or fake books can have sevenths added to them, using the performer's discretion and ear. [1] For example, if a tune is in the key of C, if there is a G chord, the chord-playing performer usually voices this chord as G 7 .
A chord chart (or chart) is a form of musical notation that describes the basic harmonic and rhythmic information for a song or tune. 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 (usually consisting of piano, guitar, drums and bass).
The Rhythm changes is a common 32-bar jazz chord progression derived from George Gershwin's "I Got Rhythm". The progression is in AABA form , with each A section based on repetitions of the ubiquitous I–vi–ii–V sequence (or variants such as iii–vi–ii–V), and the B section using a circle of fifths sequence based on III 7 –VI 7 ...
Analytic practice in Jazz recognizes four basic chord types, plus diminished seventh chords. The four basic chord types are major, minor, minor-major, and dominant. When written in a jazz chart, these chords may have alterations specified in parentheses after the chord symbol. An altered note is a note which is a deviation from the canonical ...
Minor chords are noted with a dash after the number or a lowercase m; in the key of D, 1 is D major, and 4- or 4m would be G minor. Often in the NNS, songs in minor keys will be written in the 6- of the relative major key. So if the song was in G minor, the key would be listed as B ♭ major, and G minor chords would appear as 6-.
For example, in major-key harmony the 4th, and thus the 11th, is an avoid note and is therefore either treated as a passing tone or is augmented (raised a semitone). [4] Avoid notes are often a minor second (or a minor ninth) above a chord tone [ 5 ] or a perfect fourth above the root of the chord.
The harmonic use of the chromatic third relation originated in the Romantic era and may occur on any structural level, for example in chord progressions or through key changes. [11] The standard Western chromatic scale has twelve equidistant semitones. [12] When arranged according to the circle of fifths, it looks like this:
The Telegraph states that it is a "comprehensive guide to the most important jazz compositions, is a unique resource, a browser's companion, and an invaluable introduction to the art form", adding that "musicians who play these songs night after night now have a handy guide, outlining their history and significance and telling how they have been performed by different generations of jazz ...