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A piano reference: chords, scales, theory. Full MIDI.

F♯ Major 7th

Notes: F♯ - A♯ - C♯ - E♯ | Degrees: 1 - 3 - 5 - 7 | Written: F♯maj7, F♯M7, F♯Δ7

Construction: Root, Major 3rd, Perfect 5th, Major 7th

It is a major triad with an added major 7th, giving it a dreamy, sophisticated, and jazzy sound

Fingering: RH 2-3-4-5, LH 5-4-3-2

Inversions: Root F♯maj7 - 1st F♯maj7/A♯ - 2nd F♯maj7/C♯ - 3rd F♯maj7/E♯

G♭ Major 7th
This is the same chord as G♭ Major 7th: the same keys on the keyboard, spelled with flats.
Related boards
F♯maj711 st, 151.0 mmRoot position, figured bass 7

F♯3, A♯3, C♯4, E♯4

Fingerings

Root position: either hand, fingers low note to high
HandNotesFingers
RightF♯, A♯, C♯, E♯2-3-4-5
LeftF♯, A♯, C♯, E♯5-4-3-2

Close-position standard fingering: either hand takes the whole shape. Thumb is 1, little finger is 5.

F♯ Major 7th: notes and degrees

F♯maj7 contains F♯, A♯, C♯ and E♯. A major triad with the major seventh added on top.

Scale degree, note, and interval measured from the root.
DegreeNoteInterval from rootSemitones
1F♯Perfect unison0
3A♯Major third4
5C♯Perfect fifth7
7E♯Major seventh11

F♯, A♯ and C♯ are black keys; E♯ is white.

Construction

F♯ Major 7th = Root + Major 3rd + Perfect 5th + Major 7th = F♯, A♯, C♯, E♯
NoteIntervalDegree
F♯Root1
A♯Major 3rd3
C♯Perfect 5th5
E♯Major 7th7

Fingering

NoteKey colorRight handLeft hand
F♯blackindex finger (2)little finger (5)
A♯blackmiddle finger (3)ring finger (4)
C♯blackring finger (4)middle finger (3)
E♯whitelittle finger (5)index finger (2)

Right hand: index finger (2) on F♯, middle finger (3) on A♯, ring finger (4) on C♯, little finger (5) on E♯.

Left hand: little finger (5) on F♯, ring finger (4) on A♯, middle finger (3) on C♯, index finger (2) on E♯.

F♯ Major 7th Inversions

  • Root position
    F♯ – A♯ – C♯ – E♯
  • 1st inversion (F♯maj7/A♯)
    A♯ – C♯ – E♯ – F♯
  • 2nd inversion (F♯maj7/C♯)
    C♯ – E♯ – F♯ – A♯
  • 3rd inversion (F♯maj7/E♯)
    E♯ – F♯ – A♯ – C♯

Key Signature

A chord has no key signature of its own, but the F♯ Major 7th is the tonic (I) chord of F♯ Major, whose key signature has 6 sharps (F♯, C♯, G♯, D♯, A♯, E♯).

F♯C♯G♯D♯A♯E♯

Order of sharps

Sharps are added to a key signature in a fixed order. Each new sharp key adds the next sharp on the list.

FCGDAEB

Mnemonic: Father Charles Goes Down And Ends Battle

Chords in the Key of F♯ Major

These are the triads built on each degree of F♯ Major:

C1C2C3C4C5C6C7C8F♯A♯C♯
IF♯ Major (major)
DegreeNumeralChordQuality
1IF♯ MajorMajor
2iiG♯ MinorMinor
3iiiA♯ MinorMinor
4IVB MajorMajor
5VC♯ MajorMajor
6viD♯ MinorMinor
7vii°E♯ DiminishedDiminished

How F♯ Major 7th functions in a key

The same chord takes on a different harmonic role depending on the key it appears in. Here is where F♯ Major 7th sits diatonically across the common keys:

  • In F♯ major, F♯ Major 7th is the I chordthe tonic.
  • In A♯ minor, F♯ Major 7th is the VI chordthe tonic.
  • In C♯ major, F♯ Major 7th is the IV chorda predominant.
  • In D♯ minor, F♯ Major 7th is the III chorda mediant / color chord.

Scales That Include the F♯ Major 7th

F♯ Major 7th : Frequently Asked Questions

What is the F♯ Major 7th chord on piano?
The F♯ Major 7th chord contains the notes F♯ – A♯ – C♯ – E♯. On piano, play these notes together to sound the chord.
What is the F# piano chord?
The F# piano chord (written F♯ Major 7th) uses the same keys: F♯ – A♯ – C♯ – E♯. The # and ♯ symbols name the same black key.
What notes are in the F# Major 7th chord?
F# Major 7th is built from the F# root. Check the interactive keyboard above for exact notes and fingering.
How is the F# Major 7th chord used in music?
F# Major 7th appears in jazz, pop, and classical contexts. Its sound depends on the chord quality (Major 7th).
What is the fingering for F# Major 7th?
See the fingering chart above. Right hand typically uses thumb on root. Left hand uses pinky on root.
What are the inversions of F# Major 7th?
Use the inversion buttons above to see each inversion with notes, fingering, and staff notation.

F♯ Major 7th in detail

Exact

Every pitch class is present and nothing outside the chord is added.

TypeNotesSemitonesSpanOmissions and additionsSet relationFit
Close, root positionF♯3 A♯3 C♯4 E♯411151 mmnoneidentical
Close, first inversionA♯3 C♯4 E♯4 F♯48110 mmnoneidentical
Close, second inversionC♯4 E♯4 F♯4 A♯49124 mmnoneidentical
Close, third inversionE♯4 F♯4 A♯4 C♯58110 mmnoneidentical
Drop 2C♯3 F♯3 A♯3 E♯416220 mmnoneidentical
Drop 3A♯2 F♯3 C♯4 E♯419261 mmnoneidentical
Drop 2 and 4F♯2 C♯3 A♯3 E♯423316 mmnoneidentical

Reduced

A subset of the pitch classes: the identity is incomplete rather than altered.

TypeNotesSemitonesSpanOmissions and additionsSet relationFit
Shell, root 7 3F♯2 E♯3 A♯316220 mmomits C♯subset
Guide tones, 3 and 7A♯3 E♯4796 mmomits F♯ and C♯subset
Rootless closeA♯3 C♯4 E♯4796 mmomits F♯subset

Spans are measured centre to centre at a 165 mm octave (standard keyboard geometry).

Which keys it belongs to

KeyRoman numeralFunction
D♭ majorIVmaj7Subdominant, away from home
E♭ minor♭IIImaj7Relative-major color
G♭ majorImaj7Tonic, home
B♭ minor♭VImaj7Pre-dominant color

Classification system: common-practice functional harmony.

Change one note

Chords a single note away, and what moving that note does.

ChordChangeFormulaCommon tones
F♯maj9adds G♯1 3 5 7 94
F♯drops E♯1 3 53
F♯7E♯ becomes E1 3 5 ♭73
F♯mMaj7A♯ becomes A1 ♭3 5 73
F♯6E♯ becomes D♯1 3 5 63
F♯add9E♯ becomes G♯1 3 5 93
F♯9E♯ becomes E, G♯1 3 5 ♭7 93
F♯mA♯, E♯ becomes A1 ♭3 52
F♯augC♯, E♯ becomes C×1 3 ♯52
F♯sus2A♯, E♯ becomes G♯1 2 52
F♯sus4A♯, E♯ becomes B1 4 52
F♯m7A♯, E♯ becomes A, E1 ♭3 5 ♭72

Frequencies

NoteMIDIFrequency
F♯354185.00 Hz
A♯358233.08 Hz
C♯461277.18 Hz
E♯465349.23 Hz

Reference pitch A440, 12-TET, close root position.

Set theory: prime form, Forte number, interval vector
Absolute pitch class set
{6, 10, 1, 5}
Normal order
[5, 6, 10, 1]
Prime form
(0158)
Forte number
4-20
Interval vector
<101220>
PairIntervalSemitonesInterval class
F♯ to A♯Major third44
F♯ to C♯Perfect fifth75
F♯ to E♯Major seventh111
A♯ to C♯Minor third33
A♯ to E♯Perfect fifth75
C♯ to E♯Major third44

Where these facts come from

Every value on this page is derived from the note formula for a major 7th applied to the root F♯, using standard music theory. Nothing here is hand-entered per chord, so the notes, intervals, inversions and frequencies cannot drift out of agreement with each other. Pitches assume 12-TET at A440.