semicord

F# F# major chord

Notes
F# A# C#
Formula
1 3 5
Semitones
0 4 7 above the root
Also written
Gb (Gb Bb Db)
Other symbols
F#M, F#maj

F# to A# is a major third (4 semitones), A# to C# is a minor third (3 semitones). The major triad: a major third with a minor third on top, the tonic chord of the key of F# major.

F# on the piano

C4D4E4F4G4A4B4C5D5E5F5G5A5B5C#4Eb4F#4Ab4A#4C#5Eb5F#5Ab5Bb5C4F#A#C5C#

Root position from F#4: F#4, A#4, C#5. Middle C is C4.

F# on the guitar

Standard tuning (E A D G B E). Strings run low E on the left to high e on the right, frets downwards; × is a muted string, ○ an open string, and each dot shows the note it sounds, with the root in blue-green. Every shape below has F# as its lowest note.

F#F#C#C#F#F#A#A#C#C#F#F#
E-shape barre, root on the E string at fret 2
2 4 4 3 2 2 (low E to high e)
Sounds F#2 C#3 F#3 A#3 C#4 F#4
9fr×F#F#C#C#F#F#A#A#C#C#
A-shape barre, root on the A string at fret 9
x 9 11 11 11 9 (low E to high e)
Sounds F#3 C#4 F#4 A#4 C#5

The barre shapes are movable: an E-shape chord's root is the note under your first finger on the low E string, an A-shape chord's root is the note on the A string. Slide the same grip up or down to play major chords on other roots.

Inversions of F#

An inversion puts a note other than the root in the bass. The name is what semicord's chord finder calls those notes played bottom to top; a slash name like C/E means a C chord with E in the bass.

PositionNotes, bass firstNamedListen
Root positionF# A# C#F#
1st inversionA# C# F#F#/A#
2nd inversionC# F# A#F#/C#

Where F# fits

F# is I in F# major, IV in C# major, V in B major, V in B minor. As V in a minor key it comes from the harmonic minor scale, whose raised seventh degree is this chord's third, A#.