F♯ (G♭)
F♯ or G♭ is the first black key of the group of three, one of the five notes with two names. With A4 tuned to 440 Hz, F♯4 is 369.99 Hz. A semitone below it is F, a semitone above it G. In Solfeto it is the 2nd of the twelve pitches to join a learner's set.
F♯ in every octave
Press one to hear it.
- Solfeto plays this octave.
- Solfeto plays this octave.
- Solfeto plays this octave.
- Solfeto plays this octave.
Its names
| With a sharp | F♯, said "F sharp" |
|---|---|
| With a flat | G♭, said "G flat" |
| Fixed do | fa diesis |
| German | Fis or Ges |
| Pitch class | 6, counting C as 0 |
F♯ in Solfeto
F♯ is in every learner's first set, with C. The two are 6 semitones apart, as far as two notes can be, so the first right answers come from the notes and not from luck.
It joins when the set before it is held: right 90 percent of the time, quickly, with no pitch left behind. The method is in how to train absolute pitch.
The notes beside it
Mixing up F♯ with F or G is the most common mistake in naming it. One semitone is the smallest step between two notes, and the one training spends longest on.
Questions
What is the frequency of F sharp4?
F♯4 is 369.99 Hz, with A4 tuned to 440 Hz. F♯3 is 185.00 Hz and F♯5 is 739.99 Hz.
Is F sharp the same as G flat?
Yes, on a piano and to the ear: one key, one sound. Music in a sharp key writes F♯, music in a flat key writes G♭.
Where is F sharp on a piano?
F♯ is the first black key of the group of three.