How to play an F (natural)
This note sounds a little bit lower than F sharp (F#).
Normally we just call it 'F' and only say 'F natural' when we want to distinguish it from F#.
On the piano it's the white note between E and G - just to the left of F#.
All the white notes on the piano are naturals; the black ones are sharps and flats.
Play it
Finger a low C, then lift off your 5th finger:
We can show it like this:

It should sound like this:

DON'T TAKE YOUR LITTLE FINGER OFF!!
Lots of people do, but it's really out of tune!
Can you hear the difference?
Read it
We write it in the bottom space, just like an F#:

Q: So how can we tell the difference?
A: If there's no sharp in the key signature we play Fs; if there is we play F#s


If there is an F# in the key signature, but we want an F (natural),
we put a natural sign in front of the note.


and...

Exercises
Practice it next to all the other notes you know, especially these four:

Don't forget that little finger!
Keep your fingers in the F shape - like a fork with a bent prong!
Listen out for unwanted sounds in between the notes - swap fingers tidily.
Play
Play
Play
Play
C major scale
This scale only uses the natural (white) notes. There are no sharps or flats (black notes).

Play
C major arpeggio
The 1st, 3rd. 5th and 8th notes of the scale make an arpeggio.

Play
If you play C, E and G at the same time, they sound good together. Try it on a keyboard:
Play
This is a C major chord.