First 12 Frets with accidental ♯'s and ♭' s — ↺indicates same note as next string open

Click on a note to see it's image on the treble clef

Hover over the fret to see the tooltip with octive notation and note frequency.

String	Open	1st	2nd	3rd	4th	5th	6th	7th	8th	9th	10th	11th	12th
❶	e	f	♯f♭g	g	♯g♭a	a	♯a♭b	b	c	♯c♭d	d	♯d♭e	e
❷	b	c	♯c♭d	d	♯d♭e	↺e	f	♯f♭g	g	♯g♭a	a	♯a♭b	b
❸	g	♯g♭a	a	♯a♭b	↺b	c	♯c♭d	d	♯d♭e	e	f	♯f♭g	g
❹	d	♯d♭e	e	f	♯f♭g	↺g	♯g♭a	a	♯a♭b	b	c	♯c♭d	d
❺	a	♯a♭b	b	c	♯c♭d	↺d	♯d♭e	e	f	♯f♭g	g	♯g♭a	a
❻	e	f	♯f♭g	g	♯g♭a	↺a	♯a♭b	b	c	♯c♭d	d	♯d♭e	e

What does the '8' below the clef mean and where is middle C?

A small “8” directly above or below a clef is used to show that the music is an octave lower or higher than
normally indicated. For example, if the “8” is below the clef, the music will sound an octave lower than usual.
To illustrate: where “1” is middle 'C' and “2” is 'C' below middle 'C'. As it turns out, all guitar music
should be written this way, but publishers seldom bother. In fact it would probably confuse everyone involved!

So then, just where is middle 'C'? As it turns out, middle 'C' on the guitar is located on the first fret of
the second string, not the third fret of the 5th string! Hold the mouse over the fret and see that the tooltip
says 'c4—261.626Hz'; correct octive notation and correct frequency for middle 'C'.