F♯ Major Triad

Chord Tones: F♯ Major Triad

Symbol: M, maj, (none), Formula: 1-3-5

DegreeNoteFrequency (A=440, Equal)
1 F♯4 369.994 Hz
3 A♯4 466.164 Hz
5 C♯4 277.183 Hz

Chord Notation

Notation TypeSymbol / Value
Lead Sheet SymbolF♯M
All Common SymbolsM, maj, (none)
Interval Formula1-3-5
Harmonic Categoryconsonant

Roman numeral (e.g. I, IV, V) and Nashville Number notation are key-dependent. See Keys pages for chord function within specific keys.

Inversions

InversionNotes (low to high)Bass NoteSlash Notation
Root Position F♯4 – A♯4 – C♯4 F♯ F♯ Major Triad
First Inversion A♯4 – C♯4 – F♯4 A♯ F♯ Major Triad/A♯
Second Inversion C♯4 – F♯4 – A♯4 C♯ F♯ Major Triad/C♯

Harmonic Function

The F♯ major chord commonly functions as the tritone substitution in C major or tonic in F♯ major. Its harmonic role varies by key, in major keys it provides stable harmonic grounding.

The major triad is the most fundamental chord in Western music, built from the root, major third, and perfect fifth. It has a bright, stable, and resolved sound. The F♯ Major Triad specifically contains 3 notes: F♯, A♯, C♯ (formula: 1-3-5). On piano, F#-rooted chords place the root on a black key, creating hand positions that many pianists find ergonomically comfortable for fast passages. Progressive rock, jazz fusion, and electronic music use F#-rooted chords to create unexpected harmonic shifts and chromatic modulations.

Common Progressions

The F♯ Major Triad frequently appears in these progression patterns (shown in Roman numeral notation relative to key):

Songs Featuring the Major Triad

Well-known songs where the F♯ Major Triad, or this chord type, plays a prominent role:

Tuning Frequencies Across Temperaments

Frequencies shown at A=440 Hz. View full temperament data for any note.

NoteEqual Temp.PythagoreanJust Intonation
F♯4 369.994 Hz 371.251 Hz 367.911 Hz
A♯4 466.164 Hz 463.538 Hz 470.926 Hz
C♯4 277.183 Hz 278.437 Hz 279.067 Hz

Scales Containing the F♯ Major Triad

These scales include the F♯ Major Triad as a diatonic or characteristic chord: