F# Dur Akkord

A bright, happy triad built from a root, major third, and perfect fifth.

F# Akkord — Quick Answer & Harmonic Definition

The F# (Major) chord consists of the notes F#, A#, C#. It is constructed from the root note F# using the major interval formula (0–4–7 semitones).

Formula: 0 – 4 – 7

Notes

F# – A# – C#

Intervals (semitones)

0 – 4 – 7

Type

Triad

F# on Piano

Press highlighted keys simultaneously to play the F# chord.

F# (Root (R))

A# (Major 3rd)

C# (Perfect 5th)

F# on Guitar

Fret numbers (low E → high e string): 244322 (x=mute, 0=open)

Interval Analysis

Degree	Interval Name	Semitones	Note in F#
Root	Root (R)	0	F#
3rd	Major 3rd	4	A#
5th	Perfect 5th	7	C#

About the F# Dur Chord

The F# chord (F# Dur) consists of 3 notes: F#, A#, C#. A bright, happy triad built from a root, major third, and perfect fifth.

To build any major chord, apply intervals of 0, 4, 7 semitones above the root. Starting from F#: the notes land on F#, A#, C#.

Playing F# on Piano

Press F#, A#, C# simultaneously. In root position, F# is lowest. First inversion places A# in the bass for a lighter sound; second inversion uses C# as the bass note.

Common Chord Progressions Using F#

I–IV–V: F# – B – C# (blues and rock)
I–V–vi–IV: F# – C# – D#m – B (pop staple)
I–vi–IV–V: F# – D#m – B – C# (50s progression)

The F# Chord in Context

As a major chord, F# serves as the tonic (I) in the key of F# major. It also appears as the IV chord in C# major, and as the V chord in B major — making it one of the foundational primary triads in Western harmony.

Other F# Chords

Dur Chord in All 12 Keys

C C# D D# E F F# G G# A A# B

Knowledge Base & FAQs

F# Chord — Frequently Asked Questions

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What notes are in the F# chord?

The F# Dur chord contains: F#, A#, C#.

These notes are derived by applying the major interval formula (0–4–7 semitones) to the root note F#.

What is the F# chord used for?

A bright, happy triad built from a root, major third, and perfect fifth.

The F# chord is used across pop, rock, jazz, and classical music. As the I chord in the key of F# major, it functions as the most stable resting point in progressions.

How do you play F# on piano?

On piano, play F#, A#, C# simultaneously.

In root position, F# is the lowest note. Inversions move the bass note up — first inversion has A# lowest, second inversion has C# lowest.

How many notes are in a major chord?

A major chord has 3 notes: F#, A#, C# (in F#).

It is a triad — the most fundamental chord type.

What is the difference between F# major and F# minor?

The F# major chord (F#–A#–C#) uses a major third (4 semitones), giving it a bright, happy sound.

The F# minor chord (F#–A–C#) uses a minor third (3 semitones), giving it a darker, emotional sound.

What key does F# belong to?

F# naturally serves as the I chord in the key of F# major.

It also appears as IV in the key of C# major, and as V in the key of B major.

Can I play F# on ukulele?

Yes.

The ukulele uses GCEA tuning with 4 strings. The F# chord notes (F#, A#, C#) can be fretted on a ukulele, though the shapes differ from guitar due to the 4-string layout and shorter scale.

What chords go well with F#?

In the key of F# major, F# pairs naturally with B major (IV), C# major (V), and D#m (vi).

The classic I–IV–V (F#–B–C#) is the foundation of blues, country, and rock.

What is a chord inversion of F#?

An inversion places a non-root note in the bass.

F# root position: F# in bass. First inversion: A# in bass. Second inversion: C# in bass. Inversions create smoother bass line movement without changing the harmony.

How do I memorize the notes in a major chord?

Remember the formula: 0–4–7 semitones from root.

For F#: start on F#, add 4 semitones, then 7 semitones. Practicing this across all 12 roots builds instant recognition of any major chord.