This design shows 12 frets of a guitar fretboard and the positions of the notes of the C major scale C, D, E, F, G, A, B. The C, E and G notes, that form the C major triad, are shown as blue, yellow and orange and the other notes as white circles. Knowing the notes on the fretboard is extremely helpful if you want to get creative with the guitar. Get this design on one of the available products to help you memorize the guitar fretboard.