G Maj Guitar Scale Maps are a unique way to learn and practice g major guitar scales. Great with guitar backing tracks, Guitar Maps connect g major guitar scales together so you can follow them up and down the fretboard. The guitar scales maps can work for songs that are in a Major or Minor key. G Min guitar scales work with songs that have a Minor root note and the GMaj scales are for songs that have a G Major root note. scales for playing blues, rock, metal, country and some jazz guitar solos. Learning G major fret board scale patterns will open up a whole new world when it's time for you to jam.