With the inclusion of sharps and flats, there are 12 different notes within one octave as shown:
The notes EF and BC are always one semitone apart (1 fret). The other notes are a tone apart (2 frets). Sharps (#) and flats (b) are found between the notes that are a tone apart:
This scale is called the chromatic scale and contains all the sharps ( #’s ) and flats ( b’s ) possible. C sharp (C#) has the same position on the fretboard as D flat (Db). They are the same note but can have different names depending upon what key you are playing in. The same applies to D#/Eb, F#/Gb, G#/Ab and A# /Bb. These are called enharmonic notes.Written as follows are all the notes on the guitar including these sharps and flats.
These note positions are important to remember because they are the basis for tuning your guitar to itself. (see lesson 22). All the notes on each of the six strings are shown in the following fretboard diagram. All the notes on the 6th string have been notated on a music staff and tab below the fretboard diagram.