page_title: Eleventh chord
section_title: Fourth
hierarchical_section_title: Eleventh chord / Fourth
caption_attribution_description: English: Fourth (F), in red, of a C suspended fourth chord.
context_page_description: In music theory, an eleventh chord is a chord that contains the tertian extension of the eleventh. Typically found in jazz, an eleventh chord also usually includes the seventh and ninth, and elements of the basic triad structure. Variants include the dominant eleventh, minor eleventh, and the major eleventh chord. Symbols include: Caug¹¹, C⁹ᵃᵘᵍ¹¹, C⁹⁺¹¹, C⁹ᵃˡᵗ¹¹, Cm, C−. The eleventh in an eleventh chord is, "almost always sharpened, especially in jazz," at least in reference to the third, with CM¹¹: C–E–G–B–D–F, Cm11: C–E♭–G–B♭–D–F, and C¹¹: C–E–G–B♭–D–F.
  However, since the major diatonic eleventh would create a dissonant minor ninth interval with the third of the chord, including the third is a rare phenomenon. Though rare, in rock and popular music, for example 52 seconds into "Sun King" on the Beatles' Abbey Road, the third of the dominant eleventh, is usually omitted. It may be notated in charts as C¹¹, or more often "descriptively" as Gm⁷/C. The third is also sometimes omitted, thus turning the chord into a suspended chord.
  As the upper extensions constitute a triad, a dominant eleventh chord with the third and fifth omitted is often notated as a triad with a bass note.
context_section_description: The fourth factor of a chord is the note or pitch four scale degrees above the root or tonal center. When the fourth is the bass note, or lowest note, of the expressed chord, the chord is in first inversion Play . However, this is equivalent to a gapped ninth chord.
  Conventionally, the fourth is third in importance to the root, fifth, and third, being an added tone. It may be avoided as the root since that inversion may resembles a ninth chord on the fourth rather than a suspended chord on the original note. In jazz chords and theory, the fourth is required due to its being an added tone.
  The quality of the fourth may be determined by the scale or may be indicated. For example, in both a major and minor scale, a diatonic fourth added to the tonic chord is major (C–F–G)—while one added to the subdominant chord is major or minor (F–B–C or F–B♭–C), respectively.
  The fourth is octave equivalent to the eleventh. If one could cut out the notes in between the fifth and the eleventh and then drop the eleventh down an octave to a fourth, one would have an added fourth chord (C–E–G–B♭–D′–F′ minus B♭–D′ = C–E–F–G). The difference between sus4 and add11 is conventionally the absence or presence, respectively, of the third.
caption: Fourth (F), in red, of a C suspended fourth chord (About this soundPlay (help·info)).
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