Chord type
Major 11th Chords on Piano
The major 11th chord adds a perfect 11th to a major 9th — creating a lush, complex voicing with Lydian overtones. Like the dominant 11th, the natural 11th clashes with the major 3rd, so pianists often raise the 11th (♯11) or drop the 3rd for practical voicings.
Each key below opens the full reference entry — keyboard diagram, audio, inversions, fingerings, and notation.
Formula: Root – Major 3rd – Perfect 5th – Major 7th – Major 9th – Perfect 11th
Scale degrees: 1–3–5–7–9–11
Sound: Lush, complex, quartal, Lydian
Symbol: maj11, M11 (Cmaj11)
Practical voicing: With six notes and a 3rd/11th clash, practical maj11 voicings drop the 3rd or 5th. A common approach is quartal voicing (stacking 4ths): this produces the open, floating sound associated with modern jazz. Many pianists prefer Lydian chords (maj7♯11) to avoid the clash entirely.
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All 18 spellings, ♯ and ♭ keys listed separately.