Construction
| Note | Interval | Degree |
|---|---|---|
| F♯ | Root | 1 |
| A | Minor 3rd | ♭3 |
| C♯ | Perfect 5th | 5 |
Fingering
| Note | Key color | Right hand | Left hand |
|---|---|---|---|
| F♯ | black | thumb (1) | little finger (5) |
| A | white | middle finger (3) | middle finger (3) |
| C♯ | black | little finger (5) | thumb (1) |
Right hand: thumb (1) on F♯, middle finger (3) on A, little finger (5) on C♯.
Left hand: little finger (5) on F♯, middle finger (3) on A, thumb (1) on C♯.
F♯ Minor Inversions
- Root positionF♯ – A – C♯
- 1st inversion (F♯m/A)A – C♯ – F♯
- 2nd inversion (F♯m/C♯)C♯ – F♯ – A
Key Signature
A chord has no key signature of its own, but the F♯ Minor is the tonic (i) chord of F♯ Minor, which shares the signature of its relative major, A Major: 3 sharps (F♯, C♯, G♯).
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.
Mnemonic: Father Charles Goes Down And Ends Battle
Chords in the Key of F♯ Minor
These are the triads built on each degree of F♯ Minor:
How F♯ Minor functions in a key
The same chord takes on a different harmonic role depending on the key it appears in. Here is where F♯ Minor sits diatonically across the common keys:
- In A major, F♯ Minor is the vi chord — the tonic.
- In F♯ minor, F♯ Minor is the i chord — the tonic.
- In E major, F♯ Minor is the ii chord — a predominant.
- In C♯ minor, F♯ Minor is the iv chord — a predominant.
- In D major, F♯ Minor is the iii chord — a mediant / color chord.
- In B minor, F♯ Minor is the v chord.
Scales That Include the F♯ Minor
F♯ Minor : Frequently Asked Questions
What is the F♯ Minor chord on piano?
What is the F# piano chord?
What notes make up the F# Minor chord?
What fingering do I use for F# Minor?
What are the inversions of F# Minor?
What songs use the F# Minor chord?
What chords pair well with F# Minor?
How does F# Minor relate to A Major?
F♯ Minor in detail
Exact
Every pitch class is present and nothing outside the chord is added.
| Type | Notes | Semitones | Span | Omissions and additions | Set relation | Fit |
|---|---|---|---|---|---|---|
| Close, root position | F♯3 A3 C♯4 | 7 | 96 mm | none | identical | |
| Close, first inversion | A3 C♯4 F♯4 | 9 | 124 mm | none | identical | |
| Close, second inversion | C♯4 F♯4 A4 | 8 | 110 mm | none | identical | |
| Open, fifth on top | F♯2 C♯3 A3 | 15 | 206 mm | none | identical |
Reduced
A subset of the pitch classes: the identity is incomplete rather than altered.
| Type | Notes | Semitones | Span | Omissions and additions | Set relation | Fit |
|---|---|---|---|---|---|---|
| Root and third only | F♯3 A3 | 3 | 41 mm | omits C♯ | subset |
Spans are measured centre to centre at a 165 mm octave (standard keyboard geometry).
| Position | Bass note | Notes in order | Figured bass | Semitones | Span |
|---|---|---|---|---|---|
| Root position | F♯ | F♯3, A3, C♯4 | 5/3 | 7 | 96 mm |
| First inversion: F♯m/A | A | A3, C♯4, F♯4 | 6/3 | 9 | 124 mm |
| Second inversion: F♯m/C♯ | C♯ | C♯4, F♯4, A4 | 6/4 | 8 | 110 mm |
One position per chord tone in the bass. Spans are for close position: voiced inversions appear under Voicings.
| Progression | Key | Role | Sequence | Voice leading |
|---|---|---|---|---|
| iv, v, i | C♯ minor | iv | F♯m to G♯m to C♯m | F♯m opens the phrase |
| i, iv | C♯ minor | iv | C♯m to F♯m | 1 tone held from C♯m |
| iii, vi, ii, V | D major | iii | F♯m to Bm to Em to A | F♯m opens the phrase |
| I, iii | D major | iii | D to F♯m | 2 tones held from D |
| ii, V, I | E major | ii | F♯m to B to E | F♯m opens the phrase |
| ii°, v, i | F♯ minor | i | G♯dim to C♯m to F♯m | 1 tone held from C♯m |
| iv, i | F♯ minor | i | Bm to F♯m | 1 tone held from Bm |
| i, ♭VI, ii°, v | F♯ minor | i | F♯m to D to G♯dim to C♯m | F♯m opens the phrase |
Root motion, common tones and voice displacement are computed from pitch class sets. Roman numerals follow common practice functional harmony.
Which keys it belongs to
| Key | Roman numeral | Function |
|---|---|---|
| C♯ minor | iv | Subdominant |
| D major | iii | Tonic substitute |
| E major | ii | Predominant |
| F♯ minor | i | Tonic, home |
| A major | vi | Tonic substitute |
| B minor | v | Minor dominant |
Classification system: common-practice functional harmony.
Change one note
Chords a single note away, and what moving that note does.
| Chord | Change | Formula | Common tones |
|---|---|---|---|
| F♯m7 | adds E | 1 ♭3 5 ♭7 | 3 |
| F♯mMaj7 | adds E♯ | 1 ♭3 5 7 | 3 |
| F♯m6 | adds D♯ | 1 ♭3 5 6 | 3 |
| F♯ | A becomes A♯ | 1 3 5 | 2 |
| F♯dim | C♯ becomes C | 1 ♭3 ♭5 | 2 |
| F♯sus2 | A becomes G♯ | 1 2 5 | 2 |
| F♯sus4 | A becomes B | 1 4 5 | 2 |
| F♯maj7 | A becomes A♯, E♯ | 1 3 5 7 | 2 |
| F♯7 | A becomes A♯, E | 1 3 5 ♭7 | 2 |
| F♯m7♭5 | C♯ becomes C, E | 1 ♭3 ♭5 ♭7 | 2 |
| F♯dim7 | C♯ becomes C, E♭ | 1 ♭3 ♭5 ♭♭7 | 2 |
| F♯7sus4 | A becomes B, E | 1 4 5 ♭7 | 2 |
Frequencies
| Note | MIDI | Frequency |
|---|---|---|
| F♯3 | 54 | 185.00 Hz |
| A3 | 57 | 220.00 Hz |
| C♯4 | 61 | 277.18 Hz |
Reference pitch A440, 12-TET, close root position.
Set theory: prime form, Forte number, interval vector
- Absolute pitch class set
- {6, 9, 1}
- Normal order
- [6, 9, 1]
- Prime form
- (037)
- Forte number
- 3-11
- Interval vector
- <001110>
| Pair | Interval | Semitones | Interval class |
|---|---|---|---|
| F♯ to A | Minor third | 3 | 3 |
| F♯ to C♯ | Perfect fifth | 7 | 5 |
| A to C♯ | Major third | 4 | 4 |
Where these facts come from
Every value on this page is derived from the note formula for a minor 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.