Finger Positions

Root Note F

Name F major ninth over F#

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

Relative Minor Dm

Notes F#, F, A, C, E, G

Aliases Fmaj9, FΔ9, F^9

How to play the Fmaj9/F# Chord

The Fmaj9/F# is a fundamental major 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 major ninth over F# is built using the 1P, 3M, 5P, 7M, 9M intervals. In the key of F Major, this chord functions as the I chord.

Common Progressions

In music composition, the Fmaj9/F# 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

Major Bebop Lydian Harmonic Major Bebop Major Ichikosucho Messiaen's Mode #3 Chromatic

* 8 scales found containing the notes F#, F, A, C, E, G.

Acoustic & Digital Analysis

Digital footprint of the Fmaj9/F# chord for MIDI programming and synthesizer sound design.

MIDI Numbers 66, 65, 69, 60, 64, 67

Frequencies (Hz)

369.9944227116344, 349.2282314330039, 440, 261.6255653005986, 329.6275569128699, 391.99543598174927