#MartinMonday The Martin Guitar Road Series GPC13E is perfect for value-conscious players looking for a full-sized, solid wood acoustic with the superior Martin tone that has shaped generations of music. Newly updated, the series features a stunning mother-of-pearl pattern in the fingerboard and rosettes. All models include Martin’s high-performance neck taper. Perhaps the most notable update to the Road Series is the addition of discreet Fishman MX-T electronics with a built-in soundhole tuner