Finger Positions

Root Note D#

Name D# over F#

Intervals 1P-3M-5P-7m-9A-11A

Relative Minor Cm

Notes D#, G, A#, C#, F#, A

Aliases D#7#9#11, D#7b5#9, D#7#9b5

How to play the D#7#9b5/F# Chord

The D#7#9b5/F# is a fundamental dominant chord in guitar music. To play this chord correctly, ensure your fingers are placed precisely on the frets indicated in the diagram above.

Music Theory Analysis

From a theoretical perspective, the D# over F# is built using the 1P, 3M, 5P, 7m, 9A, 11A intervals. In the key of D# Major, this chord functions as the I chord.

Common Progressions

In music composition, the D#7#9b5/F# chord is often used to create tension or resolution.

I-V-vi-IV

D# → A# → Cm → G#

vi-IV-I-V

Cm → G# → D# → A#

The Diatonic Family

Understanding the "family" of chords that belong to D# helps with transposition and ear training.

Triads

D# Fm Gm G# A# Cm Ddim

7ths

D#maj7 Fm7 Gm7 G#maj7 A#7 Cm7 Dm7b5

Scale Compatibility

View All Scales

Hungarian Major Flamenco Half-Whole Diminished Composite Blues Messiaen's Mode #3 Chromatic

* 6 scales found containing the notes D#, G, A#, C#, F#, A.

Acoustic & Digital Analysis

Digital footprint of the D#7#9b5/F# chord for MIDI programming and synthesizer sound design.

MIDI Numbers 63, 67, 70, 61, 66, 69

Frequencies (Hz)

311.1269837220809, 391.99543598174927, 466.1637615180899, 277.1826309768721, 369.9944227116344, 440