Editing Rhythm guitar (section)

===Jazz harmony===
[[Jazz guitar]]ists use their knowledge of [[harmony]] and jazz theory to create jazz chord [[Voicing (music)|"voicings"]], which emphasize the 3rd and 7th notes of the chord. Unlike pop and rock guitarists, who typically include the root of a chord (even, with many open chords and barre chords, doubling the root), jazz guitarists typically omit the root. Some more sophisticated chord voicings also include the 9th, 11th, and 13th notes of the chord. A typical jazz voicing for the chord G7 would be the individual notes B, E, F, and A. This voicing uses the 3rd (the note B), the 7th (the note F), along with the 6th (the note E) and the 9th (the note A).

In some modern jazz styles, [[dominant 7th]] chords in a tune may contain altered 9ths (either flattened by a semitone, which is called a "flat 9th", or sharpened by a semitone, which is called a "sharp 9th"); 11ths (sharpened by a semitone, which is called a "sharp 11th"); 13ths (typically flattened by a semitone, which is called a "flat 13th").

Jazz guitarists need to learn about a range of different chords, including [[major 7th]], [[major 6th]], [[minor 7th]], [[minor/major seventh|minor/major 7th]], [[dominant 7th]], [[diminished seventh chord|diminished]], [[half-diminished seventh chord|half-diminished]], and [[augmented chord]]s. As well, they need to learn about chord transformations (e.g., altered chords, such as "alt dominant chords" described above), [[chord substitution]]s, and re-harmonization techniques. Some jazz guitarists use their knowledge of jazz scales and chords to provide a [[walking bass]]-style accompaniment.

Jazz guitarists learn to perform these chords over the range of different [[chord progression]]s used in jazz, such as the II-V-I progression, the jazz-style [[12 bar blues|blues progression]], the minor jazz-style blues form, the "[[rhythm changes]]" progression, and the variety of chord progressions used in jazz ballads, and [[jazz standard]]s. Guitarists may also learn to use the chord types, strumming styles, and [[effects pedal]]s (e.g., [[chorus effect]] or [[Distortion (music)|fuzzbox]]) used in 1970s-era jazz-Latin, jazz-funk, and jazz-rock fusion music.