Finger Positions

Root Note F

Name F dominant sharp ninth over D#

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

Relative Minor Dm

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

Aliases F7#9

How to play the F7#9/D# Chord

The F7#9/D# 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 F dominant sharp ninth over D# is built using the 1P, 3M, 5P, 7m, 9A intervals. In the key of F Major, this chord functions as the I chord.

Common Progressions

In music composition, the F7#9/D# chord is often used to create tension or resolution.

I-V-vi-IV

F → C → Dm → Bb

vi-IV-I-V

Dm → Bb → F → C

The Diatonic Family

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

Triads

F Gm Am Bb C Dm Edim

7ths

Fmaj7 Gm7 Am7 Bbmaj7 C7 Dm7 Em7b5

Scale Compatibility

View All Scales

Hungarian Major Flamenco Spanish Heptatonic Bebop Minor Half-Whole Diminished Kafi Raga Composite Blues Messiaen's Mode #3 Chromatic

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

Acoustic & Digital Analysis

Digital footprint of the F7#9/D# chord for MIDI programming and synthesizer sound design.

MIDI Numbers 63, 65, 69, 60, 63, 68

Frequencies (Hz)

311.1269837220809, 349.2282314330039, 440, 261.6255653005986, 311.1269837220809, 415.3046975799451