Chord F# Major

F# takes three keys, F#, A# and C#. F# is the root, A# the major third and C# the fifth. Said aloud, its notes are F sharp, A sharp and C sharp. All three keys of F# are black.

Counting semitones in F#, F# to A# is four and A# to C# is three. With A4 at 440 Hz, this position sounds F#4 at 369.99 Hz, A#4 at 466.16 Hz and C#5 at 554.37 Hz.

With the right hand, you build F# by playing F# with the thumb, A# with the middle finger and C# with the little finger. From F#4 to C#5 the hand spans seven semitones.

In the first inversion, F# moves up an octave and the lowest note becomes A#, the major third. The fingers are 1 - 2 - 5. The second inversion starts on C#, the fifth, and ends on A#. The fingers are 1 - 3 - 5.

From F# to F#m only one key changes. A# moves down a semitone to A.

You will find F# in seven keys. In F# major it is the I, in B major the V and in C# major the IV.