Why is there no major 11 chord?
Major 11 chords are major seventh chords with two supplementary notes, the ninth (9) and the eleventh (11) giving the formula : root (1), major third (3), fifth (5), seventh (7), ninth (9), eleventh (11). Major 11 chords are not played much because of their dissonance.
What is the 11th of a chord?
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.