D♯ Major 11th
Reviewed for accuracy · Last updated June 2026 · Maintained by Justin Evans
E♭ Major 11th
Practice D♯ Major 11th
Reading about it is one thing. Drilling it is what makes it automatic.
Introduction

The D♯ Major 11th chord is a six-note chord made up of D♯, F♯♯, A♯, C♯♯, E♯, and G♯. It is built from a root, major third, perfect fifth, major seventh, major ninth, and perfect eleventh.
Notes
Key Signature
A chord has no key signature of its own, but the D♯ Major 11th is the tonic (I) chord of D# Major, whose key signature has 3 flats (B♭, E♭, A♭).
Order of flats
Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.
Mnemonic: Battle Ends And Down Goes Charles’ Father
Chords in the Key of D♯ Major
These are the triads built on each degree of the D♯ major scale:
Theory: Intervals
The D♯ Major 11th is built by stacking intervals from the root note. The formula R-M3-P5-M7-M9-P11 describes the scale degrees used. The intervals P1-M3-P5-M7-M9-P11 show the distance between each note in the chord.
D♯ Major 11th — Frequently Asked Questions
What is the D♯ Major 11th chord on piano?
What notes are in the D# Major 11th chord?
How is the D# Major 11th chord used in music?
What is the fingering for D# Major 11th?
What are the inversions of D# Major 11th?
Practice Tips
- Extended jazz voicing with the 11th.
- Drop notes for practical voicings.
- The 11th adds suspension.
- Compare with the 9th version.
- Jazz and funk applications.
- Quartal voicings work well.
Related Tools
References & Further Reading
How this chord page is sourced & verified
The note names, intervals, fingering, and harmony on this page are drawn from the established body of Western music theory and verified against the conventions below — the same fundamentals taught in conservatories and music programs. We list categories of source material rather than individual titles, and reference the standards themselves rather than any single edition.
- Standard music theory texts — Widely taught fundamentals of pitch, rhythm, and notation.
- Western tonal harmony conventions — Established rules for chord construction, voice leading, and key relationships.
- Interval and chord construction standards — The conventional spelling of intervals, triads, sevenths, and extensions.
- Scale and mode theory — The common derivation of major, minor, pentatonic, blues, and modal scales.
- Piano pedagogy and technique references — Long-standing practices for fingering, hand position, and practice.
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