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, C9(aug11), C9(+11), C9alt11, Cmin9(11), C-(9)(11). The eleventh in an eleventh chord is, "almost always sharped, especially in jazz," at least in reference to the third, with CM11 (major eleventh): C-E-G-B-D-F, Cm11 (minor eleventh): C-E-G-B-D-F, and C11 (dominant eleventh): C-E-G-B-D-F.