Finger Positions

Root Note F#

Name F# half-diminished over D

Intervals 1P-3m-5d-7m

Relative Minor D#m

Notes D, F#, A, C, E

Aliases F#m7b5, F#ø, F#-7b5, F#h7, F#h

How to play the F#m7b5/D Chord

The F#m7b5/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# half-diminished over D is built using the 1P, 3m, 5d, 7m intervals. In the key of F# Major, this chord functions as the I chord.

Common Progressions

In music composition, the F#m7b5/D chord is often used to create tension or resolution.

I-V-vi-IV

F# → C# → D#m → B

vi-IV-I-V

D#m → B → F# → C#

The Diatonic Family

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

Triads

F# G#m A#m B C# D#m Fdim

7ths

F#maj7 G#m7 A#m7 Bmaj7 C#7 D#m7 Fm7b5

Scale Compatibility

View All Scales

Minor Blues Locrian Locrian Pentatonic Super Locrian Pentatonic Altered Locrian #2 Locrian 6 Dorian #4 Hungarian Major Flamenco Bebop Locrian Half-Whole Diminished Composite Blues Messiaen's Mode #3 Chromatic

* 15 scales found containing the notes D, F#, A, C, E.

Acoustic & Digital Analysis

Digital footprint of the F#m7b5/D chord for MIDI programming and synthesizer sound design.

MIDI Numbers 62, 66, 69, 60, 64

Frequencies (Hz)

293.6647679174076, 369.9944227116344, 440, 261.6255653005986, 329.6275569128699