SNAMM '15 - BA Ferguson P.H.A.T. Acoustic Tremolo Demo Jason ShadrickAugust 7, 2015VideoSee and hear the world's first, patented acoustic tremolo system.whats-newgearvideosba-ferguson-guitarsgear-show-demoacousticsnamm-2015GearAcoustic GuitarsNAMMVideosReviewsAcoustic