Chord type
Dominant 7th ♯11 Chords on Piano
The 7♯11 chord is a dominant 7th with a raised eleventh (augmented fourth) — the signature chord of the Lydian Dominant sound. It creates a bright, sophisticated tension that is central to modern jazz harmony and tritone substitutions.
Each key below opens the full reference entry — keyboard diagram, audio, inversions, fingerings, and notation.
Formula: Root – Major 3rd – Augmented 4th – Perfect 5th – Minor 7th
Scale degrees: 1–3–♯4–5–♭7
Sound: Bright, sophisticated, Lydian Dominant
Symbol: 7♯11 (C7♯11)
Why ♯11 instead of natural 11? A natural 11th (perfect 4th) clashes badly with the major 3rd — they are only a semitone apart. The ♯11 avoids this clash entirely, sitting comfortably alongside the third. This is why jazz musicians strongly prefer 7♯11 over 7sus or dom11 for dominant chords. The matching scale is Lydian Dominant (4th mode of melodic minor).
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All 18 spellings, ♯ and ♭ keys listed separately.
7♯11 Chord in All 18 Keys
C Dominant 7th Sharp 11 ChordNotes: C – E – F♯ – G – B♭C♯ Dominant 7th Sharp 11 ChordNotes: C♯ – E♯ – F♯♯ – G♯ – BD♭ Dominant 7th Sharp 11 ChordNotes: D♭ – F – G – A♭ – C♭D Dominant 7th Sharp 11 ChordNotes: D – F♯ – G♯ – A – CD♯ Dominant 7th Sharp 11 ChordNotes: D♯ – F♯♯ – G♯♯ – A♯ – C♯E♭ Dominant 7th Sharp 11 ChordNotes: E♭ – G – A – B♭ – D♭E Dominant 7th Sharp 11 ChordNotes: E – G♯ – A♯ – B – DF Dominant 7th Sharp 11 ChordNotes: F – A – B – C – E♭F♯ Dominant 7th Sharp 11 ChordNotes: F♯ – A♯ – B♯ – C♯ – EG♭ Dominant 7th Sharp 11 ChordNotes: G♭ – B♭ – C – D♭ – F♭G Dominant 7th Sharp 11 ChordNotes: G – B – C♯ – D – FG♯ Dominant 7th Sharp 11 ChordNotes: G♯ – B♯ – C♯♯ – D♯ – F♯A♭ Dominant 7th Sharp 11 ChordNotes: A♭ – C – D – E♭ – G♭A Dominant 7th Sharp 11 ChordNotes: A – C♯ – D♯ – E – GA♯ Dominant 7th Sharp 11 ChordNotes: A♯ – C♯♯ – D♯♯ – E♯ – G♯B♭ Dominant 7th Sharp 11 ChordNotes: B♭ – D – E – F – A♭B Dominant 7th Sharp 11 ChordNotes: B – D♯ – E♯ – F♯ – AC♭ Dominant 7th Sharp 11 ChordNotes: C♭ – E♭ – F – G♭ – B♭♭