I would like to learn the fretboard and how it relates to the major scale, or all scales for that matter. I mostly just know most of the minor pentatonic scale and know some open and bar chords. But I do not understand how the fretboard works with scales in the first place. I also know that the note and fret spacing on the fretboard is as follows, but I don't know why it works out that way. Do you??? A BC D EF G A ... where A and B are two frets apart, but B and C are one fret apart.