# Another Look at the 7 and 5-fret “Rules”

As pointed out in other posts, the most basic relationship between guitar strings is that each higher string is tuned 5 semitones above the adjacent one. Except, as we’ve seen, the B string (string 2) is only 4 semitones above the G string.

**What this means is that for any two strings, the notes at adjacent frets will be 5 st apart. So, for example, we know that the note at D7 will be 5 semitones higher than the note at A7.**

And since we know that there are 12 semitones in an octave, we know that we will have to go 7 more on the higher string to get to the *octave* higher (5+7), or 5 lower to get to the *same note*.

The first (7 higher) is the “7 Fret Rule”. The second (5 frets lower) is the “5 Fret Rule”. These two notes will be 12 frets apart (one octave).