Musikmesse '14 - Martin GPC-Aura GT, 000-18, and OM-28 Demos Joe GoreApril 2, 2014VideoThe acoustic guitar titan introduced three new delicious models at this year's show--see and hear them in action!videoswhats-newomacoustic-electric12-fretmahoganymusikmesse-14gear-show-demosteel-string14-fretdreadnoughtmartinspruceacousticrosewoodgearVideosGearAcoustic GuitarsAcousticReviews