Finger Positions

Root Note F#

Name F# over A

Intervals 1P-3M-5P-6M-11A

Relative Minor D#m

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

Aliases F#M6#11, F#M6b5, F#6#11, F#6b5

How to play the F#6b5/A Chord

The F#6b5/A 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# over A is built using the 1P, 3M, 5P, 6M, 11A intervals. In the key of F# Major, this chord functions as the I chord.

Common Progressions

In music composition, the F#6b5/A 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

Lydian Lydian Dominant Hungarian Major Lydian #9 Ichikosucho Half-Whole Diminished Composite Blues Chromatic

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

Acoustic & Digital Analysis

Digital footprint of the F#6b5/A chord for MIDI programming and synthesizer sound design.

MIDI Numbers 69, 66, 70, 61, 63, 60

Frequencies (Hz)

440, 369.9944227116344, 466.1637615180899, 277.1826309768721, 311.1269837220809, 261.6255653005986